From ed08d82d76665f84d5fd9ce4ef41e84542b010cc Mon Sep 17 00:00:00 2001 From: Bardur Arantsson Date: Wed, 4 Jan 2017 21:26:49 +0100 Subject: Remove obsolete 'cppformat' vendor code --- CMakeLists.txt | 5 + src/CMakeLists.txt | 4 - vendor/cppformat/format.cc | 1385 ------------------- vendor/cppformat/format.h | 3259 -------------------------------------------- 4 files changed, 5 insertions(+), 4648 deletions(-) delete mode 100644 vendor/cppformat/format.cc delete mode 100644 vendor/cppformat/format.h diff --git a/CMakeLists.txt b/CMakeLists.txt index 4379c761..61b8dda7 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -46,6 +46,11 @@ IF("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang") # Nothing for now ENDIF() +# +# fmt +# +ADD_DEFINITIONS(-DFMT_HEADER_ONLY) + # Add standard math library SET(LIBS ${LIBS} m) diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 3b8189b5..1900ac72 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -8,10 +8,6 @@ INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR}/../vendor/jsoncons) # Add subdirectories ADD_SUBDIRECTORY (squelch) -# Sources (vendor) -SET(SRCS_VENDOR - ${CMAKE_CURRENT_SOURCE_DIR}/../vendor/cppformat/format.cc) - # Sources (common) SET(SRCS_COMMON birth.cc diff --git a/vendor/cppformat/format.cc b/vendor/cppformat/format.cc deleted file mode 100644 index d17c2d68..00000000 --- a/vendor/cppformat/format.cc +++ /dev/null @@ -1,1385 +0,0 @@ -/* - Formatting library for C++ - - Copyright (c) 2012 - 2015, Victor Zverovich - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - - 1. Redistributions of source code must retain the above copyright notice, this - list of conditions and the following disclaimer. - 2. Redistributions in binary form must reproduce the above copyright notice, - this list of conditions and the following disclaimer in the documentation - and/or other materials provided with the distribution. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND - ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR - ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "format.h" - -#include - -#include -#include -#include -#include -#include -#include // for std::ptrdiff_t - -#if defined(_WIN32) && defined(__MINGW32__) -# include -#endif - -#if FMT_USE_WINDOWS_H -# if defined(NOMINMAX) || defined(FMT_WIN_MINMAX) -# include -# else -# define NOMINMAX -# include -# undef NOMINMAX -# endif -#endif - -using fmt::internal::Arg; - -// Check if exceptions are disabled. -#if defined(__GNUC__) && !defined(__EXCEPTIONS) -# define FMT_EXCEPTIONS 0 -#endif -#if defined(_MSC_VER) && !_HAS_EXCEPTIONS -# define FMT_EXCEPTIONS 0 -#endif -#ifndef FMT_EXCEPTIONS -# define FMT_EXCEPTIONS 1 -#endif - -#if FMT_EXCEPTIONS -# define FMT_TRY try -# define FMT_CATCH(x) catch (x) -#else -# define FMT_TRY if (true) -# define FMT_CATCH(x) if (false) -#endif - -#ifndef FMT_THROW -# if FMT_EXCEPTIONS -# define FMT_THROW(x) throw x -# else -# define FMT_THROW(x) assert(false) -# endif -#endif - -#ifdef FMT_HEADER_ONLY -# define FMT_FUNC inline -#else -# define FMT_FUNC -#endif - -#ifdef _MSC_VER -# pragma warning(push) -# pragma warning(disable: 4127) // conditional expression is constant -# pragma warning(disable: 4702) // unreachable code -// Disable deprecation warning for strerror. The latter is not called but -// MSVC fails to detect it. -# pragma warning(disable: 4996) -#endif - -// Dummy implementations of strerror_r and strerror_s called if corresponding -// system functions are not available. -static inline fmt::internal::Null<> strerror_r(int, char *, ...) { - return fmt::internal::Null<>(); -} -static inline fmt::internal::Null<> strerror_s(char *, std::size_t, ...) { - return fmt::internal::Null<>(); -} - -namespace fmt { -namespace { - -#ifndef _MSC_VER -# define FMT_SNPRINTF snprintf -#else // _MSC_VER -inline int fmt_snprintf(char *buffer, size_t size, const char *format, ...) { - va_list args; - va_start(args, format); - int result = vsnprintf_s(buffer, size, _TRUNCATE, format, args); - va_end(args); - return result; -} -# define FMT_SNPRINTF fmt_snprintf -#endif // _MSC_VER - -#if defined(_WIN32) && defined(__MINGW32__) && !defined(__NO_ISOCEXT) -# define FMT_SWPRINTF snwprintf -#else -# define FMT_SWPRINTF swprintf -#endif // defined(_WIN32) && defined(__MINGW32__) && !defined(__NO_ISOCEXT) - -// Checks if a value fits in int - used to avoid warnings about comparing -// signed and unsigned integers. -template -struct IntChecker { - template - static bool fits_in_int(T value) { - unsigned max = INT_MAX; - return value <= max; - } - static bool fits_in_int(bool) { return true; } -}; - -template <> -struct IntChecker { - template - static bool fits_in_int(T value) { - return value >= INT_MIN && value <= INT_MAX; - } - static bool fits_in_int(int) { return true; } -}; - -const char RESET_COLOR[] = "\x1b[0m"; - -typedef void (*FormatFunc)(fmt::Writer &, int, fmt::StringRef); - -// Portable thread-safe version of strerror. -// Sets buffer to point to a string describing the error code. -// This can be either a pointer to a string stored in buffer, -// or a pointer to some static immutable string. -// Returns one of the following values: -// 0 - success -// ERANGE - buffer is not large enough to store the error message -// other - failure -// Buffer should be at least of size 1. -int safe_strerror( - int error_code, char *&buffer, std::size_t buffer_size) FMT_NOEXCEPT { - FMT_ASSERT(buffer != 0 && buffer_size != 0, "invalid buffer"); - - class StrError { - private: - int error_code_; - char *&buffer_; - std::size_t buffer_size_; - - // A noop assignment operator to avoid bogus warnings. - void operator=(const StrError &) {} - - // Handle the result of XSI-compliant version of strerror_r. - int handle(int result) { - // glibc versions before 2.13 return result in errno. - return result == -1 ? errno : result; - } - - // Handle the result of GNU-specific version of strerror_r. - int handle(char *message) { - // If the buffer is full then the message is probably truncated. - if (message == buffer_ && strlen(buffer_) == buffer_size_ - 1) - return ERANGE; - buffer_ = message; - return 0; - } - - // Handle the case when strerror_r is not available. - int handle(fmt::internal::Null<>) { - return fallback(strerror_s(buffer_, buffer_size_, error_code_)); - } - - // Fallback to strerror_s when strerror_r is not available. - int fallback(int result) { - // If the buffer is full then the message is probably truncated. - return result == 0 && strlen(buffer_) == buffer_size_ - 1 ? - ERANGE : result; - } - - // Fallback to strerror if strerror_r and strerror_s are not available. - int fallback(fmt::internal::Null<>) { - errno = 0; - buffer_ = strerror(error_code_); - return errno; - } - - public: - StrError(int err_code, char *&buf, std::size_t buf_size) - : error_code_(err_code), buffer_(buf), buffer_size_(buf_size) {} - - int run() { - strerror_r(0, 0, ""); // Suppress a warning about unused strerror_r. - return handle(strerror_r(error_code_, buffer_, buffer_size_)); - } - }; - return StrError(error_code, buffer, buffer_size).run(); -} - -void format_error_code(fmt::Writer &out, int error_code, - fmt::StringRef message) FMT_NOEXCEPT { - // Report error code making sure that the output fits into - // INLINE_BUFFER_SIZE to avoid dynamic memory allocation and potential - // bad_alloc. - out.clear(); - static const char SEP[] = ": "; - static const char ERROR_STR[] = "error "; - fmt::internal::IntTraits::MainType ec_value = error_code; - // Subtract 2 to account for terminating null characters in SEP and ERROR_STR. - std::size_t error_code_size = sizeof(SEP) + sizeof(ERROR_STR) - 2; - error_code_size += fmt::internal::count_digits(ec_value); - if (message.size() <= fmt::internal::INLINE_BUFFER_SIZE - error_code_size) - out << message << SEP; - out << ERROR_STR << error_code; - assert(out.size() <= fmt::internal::INLINE_BUFFER_SIZE); -} - -void report_error(FormatFunc func, - int error_code, fmt::StringRef message) FMT_NOEXCEPT { - fmt::MemoryWriter full_message; - func(full_message, error_code, message); - // Use Writer::data instead of Writer::c_str to avoid potential memory - // allocation. - std::fwrite(full_message.data(), full_message.size(), 1, stderr); - std::fputc('\n', stderr); -} - -// IsZeroInt::visit(arg) returns true iff arg is a zero integer. -class IsZeroInt : public fmt::internal::ArgVisitor { - public: - template - bool visit_any_int(T value) { return value == 0; } -}; - -// Parses an unsigned integer advancing s to the end of the parsed input. -// This function assumes that the first character of s is a digit. -template -int parse_nonnegative_int(const Char *&s) { - assert('0' <= *s && *s <= '9'); - unsigned value = 0; - do { - unsigned new_value = value * 10 + (*s++ - '0'); - // Check if value wrapped around. - if (new_value < value) { - value = UINT_MAX; - break; - } - value = new_value; - } while ('0' <= *s && *s <= '9'); - if (value > INT_MAX) - FMT_THROW(fmt::FormatError("number is too big")); - return value; -} - -template -inline bool is_name_start(Char c) { - return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || '_' == c; -} - -inline void require_numeric_argument(const Arg &arg, char spec) { - if (arg.type > Arg::LAST_NUMERIC_TYPE) { - std::string message = - fmt::format("format specifier '{}' requires numeric argument", spec); - FMT_THROW(fmt::FormatError(message)); - } -} - -template -void check_sign(const Char *&s, const Arg &arg) { - char sign = static_cast(*s); - require_numeric_argument(arg, sign); - if (arg.type == Arg::UINT || arg.type == Arg::ULONG_LONG) { - FMT_THROW(fmt::FormatError(fmt::format( - "format specifier '{}' requires signed argument", sign))); - } - ++s; -} - -// Checks if an argument is a valid printf width specifier and sets -// left alignment if it is negative. -class WidthHandler : public fmt::internal::ArgVisitor { - private: - fmt::FormatSpec &spec_; - - FMT_DISALLOW_COPY_AND_ASSIGN(WidthHandler); - - public: - explicit WidthHandler(fmt::FormatSpec &spec) : spec_(spec) {} - - void report_unhandled_arg() { - FMT_THROW(fmt::FormatError("width is not integer")); - } - - template - unsigned visit_any_int(T value) { - typedef typename fmt::internal::IntTraits::MainType UnsignedType; - UnsignedType width = value; - if (fmt::internal::is_negative(value)) { - spec_.align_ = fmt::ALIGN_LEFT; - width = 0 - width; - } - if (width > INT_MAX) - FMT_THROW(fmt::FormatError("number is too big")); - return static_cast(width); - } -}; - -class PrecisionHandler : - public fmt::internal::ArgVisitor { - public: - void report_unhandled_arg() { - FMT_THROW(fmt::FormatError("precision is not integer")); - } - - template - int visit_any_int(T value) { - if (!IntChecker::is_signed>::fits_in_int(value)) - FMT_THROW(fmt::FormatError("number is too big")); - return static_cast(value); - } -}; - -// Converts an integer argument to an integral type T for printf. -template -class ArgConverter : public fmt::internal::ArgVisitor, void> { - private: - fmt::internal::Arg &arg_; - wchar_t type_; - - FMT_DISALLOW_COPY_AND_ASSIGN(ArgConverter); - - public: - ArgConverter(fmt::internal::Arg &arg, wchar_t type) - : arg_(arg), type_(type) {} - - void visit_bool(bool value) { - if (type_ != 's') - visit_any_int(value); - } - - template - void visit_any_int(U value) { - bool is_signed = type_ == 'd' || type_ == 'i'; - using fmt::internal::Arg; - if (sizeof(T) <= sizeof(int)) { - // Extra casts are used to silence warnings. - if (is_signed) { - arg_.type = Arg::INT; - arg_.int_value = static_cast(static_cast(value)); - } else { - arg_.type = Arg::UINT; - arg_.uint_value = static_cast( - static_cast::Type>(value)); - } - } else { - if (is_signed) { - arg_.type = Arg::LONG_LONG; - arg_.long_long_value = - static_cast::Type>(value); - } else { - arg_.type = Arg::ULONG_LONG; - arg_.ulong_long_value = - static_cast::Type>(value); - } - } - } -}; - -// Converts an integer argument to char for printf. -class CharConverter : public fmt::internal::ArgVisitor { - private: - fmt::internal::Arg &arg_; - - FMT_DISALLOW_COPY_AND_ASSIGN(CharConverter); - - public: - explicit CharConverter(fmt::internal::Arg &arg) : arg_(arg) {} - - template - void visit_any_int(T value) { - arg_.type = Arg::CHAR; - arg_.int_value = static_cast(value); - } -}; -} // namespace - -namespace internal { - -template -class BasicArgFormatter : public ArgVisitor { - private: - BasicWriter &writer_; - FormatSpec &spec_; - - FMT_DISALLOW_COPY_AND_ASSIGN(BasicArgFormatter); - - void write_pointer(const void *p) { - spec_.flags_ = HASH_FLAG; - spec_.type_ = 'x'; - writer_.write_int(reinterpret_cast(p), spec_); - } - - protected: - BasicWriter &writer() { return writer_; } - FormatSpec &spec() { return spec_; } - - void write(bool value) { - const char *str_value = value ? "true" : "false"; - Arg::StringValue str = { str_value, strlen(str_value) }; - writer_.write_str(str, spec_); - } - - void write(const char *value) { - Arg::StringValue str = {value, value != 0 ? strlen(value) : 0}; - writer_.write_str(str, spec_); - } - - public: - BasicArgFormatter(BasicWriter &w, FormatSpec &s) - : writer_(w), spec_(s) {} - - template - void visit_any_int(T value) { writer_.write_int(value, spec_); } - - template - void visit_any_double(T value) { writer_.write_double(value, spec_); } - - void visit_bool(bool value) { - if (spec_.type_) - return visit_any_int(value); - write(value); - } - - void visit_char(int value) { - if (spec_.type_ && spec_.type_ != 'c') { - spec_.flags_ |= CHAR_FLAG; - writer_.write_int(value, spec_); - return; - } - if (spec_.align_ == ALIGN_NUMERIC || spec_.flags_ != 0) - FMT_THROW(FormatError("invalid format specifier for char")); - typedef typename BasicWriter::CharPtr CharPtr; - Char fill = internal::CharTraits::cast(spec_.fill()); - CharPtr out = CharPtr(); - const unsigned CHAR_WIDTH = 1; - if (spec_.width_ > CHAR_WIDTH) { - out = writer_.grow_buffer(spec_.width_); - if (spec_.align_ == ALIGN_RIGHT) { - std::fill_n(out, spec_.width_ - CHAR_WIDTH, fill); - out += spec_.width_ - CHAR_WIDTH; - } else if (spec_.align_ == ALIGN_CENTER) { - out = writer_.fill_padding(out, spec_.width_, - internal::check(CHAR_WIDTH), fill); - } else { - std::fill_n(out + CHAR_WIDTH, spec_.width_ - CHAR_WIDTH, fill); - } - } else { - out = writer_.grow_buffer(CHAR_WIDTH); - } - *out = internal::CharTraits::cast(value); - } - - void visit_cstring(const char *value) { - if (spec_.type_ == 'p') - return write_pointer(value); - write(value); - } - - void visit_string(Arg::StringValue value) { - writer_.write_str(value, spec_); - } - - using ArgVisitor::visit_wstring; - - void visit_wstring(Arg::StringValue value) { - writer_.write_str(value, spec_); - } - - void visit_pointer(const void *value) { - if (spec_.type_ && spec_.type_ != 'p') - report_unknown_type(spec_.type_, "pointer"); - write_pointer(value); - } -}; - -// An argument formatter. -template -class ArgFormatter : public BasicArgFormatter, Char> { - private: - BasicFormatter &formatter_; - const Char *format_; - - public: - ArgFormatter(BasicFormatter &f, FormatSpec &s, const Char *fmt) - : BasicArgFormatter, Char>(f.writer(), s), - formatter_(f), format_(fmt) {} - - void visit_custom(Arg::CustomValue c) { - c.format(&formatter_, c.value, &format_); - } -}; - -template -class PrintfArgFormatter : - public BasicArgFormatter, Char> { - - void write_null_pointer() { - this->spec().type_ = 0; - this->write("(nil)"); - } - - typedef BasicArgFormatter, Char> Base; - - public: - PrintfArgFormatter(BasicWriter &w, FormatSpec &s) - : BasicArgFormatter, Char>(w, s) {} - - void visit_bool(bool value) { - FormatSpec &fmt_spec = this->spec(); - if (fmt_spec.type_ != 's') - return this->visit_any_int(value); - fmt_spec.type_ = 0; - this->write(value); - } - - void visit_char(int value) { - const FormatSpec &fmt_spec = this->spec(); - BasicWriter &w = this->writer(); - if (fmt_spec.type_ && fmt_spec.type_ != 'c') - w.write_int(value, fmt_spec); - typedef typename BasicWriter::CharPtr CharPtr; - CharPtr out = CharPtr(); - if (fmt_spec.width_ > 1) { - Char fill = ' '; - out = w.grow_buffer(fmt_spec.width_); - if (fmt_spec.align_ != ALIGN_LEFT) { - std::fill_n(out, fmt_spec.width_ - 1, fill); - out += fmt_spec.width_ - 1; - } else { - std::fill_n(out + 1, fmt_spec.width_ - 1, fill); - } - } else { - out = w.grow_buffer(1); - } - *out = static_cast(value); - } - - void visit_cstring(const char *value) { - if (value) - Base::visit_cstring(value); - else if (this->spec().type_ == 'p') - write_null_pointer(); - else - this->write("(null)"); - } - - void visit_pointer(const void *value) { - if (value) - return Base::visit_pointer(value); - this->spec().type_ = 0; - write_null_pointer(); - } - - void visit_custom(Arg::CustomValue c) { - BasicFormatter formatter(ArgList(), this->writer()); - const Char format_str[] = {'}', 0}; - const Char *format = format_str; - c.format(&formatter, c.value, &format); - } -}; -} // namespace internal -} // namespace fmt - -FMT_FUNC void fmt::SystemError::init( - int err_code, CStringRef format_str, ArgList args) { - error_code_ = err_code; - MemoryWriter w; - internal::format_system_error(w, err_code, format(format_str, args)); - std::runtime_error &base = *this; - base = std::runtime_error(w.str()); -} - -template -int fmt::internal::CharTraits::format_float( - char *buffer, std::size_t size, const char *format, - unsigned width, int precision, T value) { - if (width == 0) { - return precision < 0 ? - FMT_SNPRINTF(buffer, size, format, value) : - FMT_SNPRINTF(buffer, size, format, precision, value); - } - return precision < 0 ? - FMT_SNPRINTF(buffer, size, format, width, value) : - FMT_SNPRINTF(buffer, size, format, width, precision, value); -} - -template -int fmt::internal::CharTraits::format_float( - wchar_t *buffer, std::size_t size, const wchar_t *format, - unsigned width, int precision, T value) { - if (width == 0) { - return precision < 0 ? - FMT_SWPRINTF(buffer, size, format, value) : - FMT_SWPRINTF(buffer, size, format, precision, value); - } - return precision < 0 ? - FMT_SWPRINTF(buffer, size, format, width, value) : - FMT_SWPRINTF(buffer, size, format, width, precision, value); -} - -template -const char fmt::internal::BasicData::DIGITS[] = - "0001020304050607080910111213141516171819" - "2021222324252627282930313233343536373839" - "4041424344454647484950515253545556575859" - "6061626364656667686970717273747576777879" - "8081828384858687888990919293949596979899"; - -#define FMT_POWERS_OF_10(factor) \ - factor * 10, \ - factor * 100, \ - factor * 1000, \ - factor * 10000, \ - factor * 100000, \ - factor * 1000000, \ - factor * 10000000, \ - factor * 100000000, \ - factor * 1000000000 - -template -const uint32_t fmt::internal::BasicData::POWERS_OF_10_32[] = { - 0, FMT_POWERS_OF_10(1) -}; - -template -const uint64_t fmt::internal::BasicData::POWERS_OF_10_64[] = { - 0, - FMT_POWERS_OF_10(1), - FMT_POWERS_OF_10(fmt::ULongLong(1000000000)), - // Multiply several constants instead of using a single long long constant - // to avoid warnings about C++98 not supporting long long. - fmt::ULongLong(1000000000) * fmt::ULongLong(1000000000) * 10 -}; - -FMT_FUNC void fmt::internal::report_unknown_type(char code, const char *type) { - (void)type; - if (std::isprint(static_cast(code))) { - FMT_THROW(fmt::FormatError( - fmt::format("unknown format code '{}' for {}", code, type))); - } - FMT_THROW(fmt::FormatError( - fmt::format("unknown format code '\\x{:02x}' for {}", - static_cast(code), type))); -} - -#if FMT_USE_WINDOWS_H - -FMT_FUNC fmt::internal::UTF8ToUTF16::UTF8ToUTF16(fmt::StringRef s) { - static const char ERROR_MSG[] = "cannot convert string from UTF-8 to UTF-16"; - if (s.size() > INT_MAX) - FMT_THROW(WindowsError(ERROR_INVALID_PARAMETER, ERROR_MSG)); - int s_size = static_cast(s.size()); - int length = MultiByteToWideChar( - CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), s_size, 0, 0); - if (length == 0) - FMT_THROW(WindowsError(GetLastError(), ERROR_MSG)); - buffer_.resize(length + 1); - length = MultiByteToWideChar( - CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), s_size, &buffer_[0], length); - if (length == 0) - FMT_THROW(WindowsError(GetLastError(), ERROR_MSG)); - buffer_[length] = 0; -} - -FMT_FUNC fmt::internal::UTF16ToUTF8::UTF16ToUTF8(fmt::WStringRef s) { - if (int error_code = convert(s)) { - FMT_THROW(WindowsError(error_code, - "cannot convert string from UTF-16 to UTF-8")); - } -} - -FMT_FUNC int fmt::internal::UTF16ToUTF8::convert(fmt::WStringRef s) { - if (s.size() > INT_MAX) - return ERROR_INVALID_PARAMETER; - int s_size = static_cast(s.size()); - int length = WideCharToMultiByte(CP_UTF8, 0, s.data(), s_size, 0, 0, 0, 0); - if (length == 0) - return GetLastError(); - buffer_.resize(length + 1); - length = WideCharToMultiByte( - CP_UTF8, 0, s.data(), s_size, &buffer_[0], length, 0, 0); - if (length == 0) - return GetLastError(); - buffer_[length] = 0; - return 0; -} - -FMT_FUNC void fmt::WindowsError::init( - int err_code, CStringRef format_str, ArgList args) { - error_code_ = err_code; - MemoryWriter w; - internal::format_windows_error(w, err_code, format(format_str, args)); - std::runtime_error &base = *this; - base = std::runtime_error(w.str()); -} - -FMT_FUNC void fmt::internal::format_windows_error( - fmt::Writer &out, int error_code, - fmt::StringRef message) FMT_NOEXCEPT { - class String { - private: - LPWSTR str_; - - public: - String() : str_() {} - ~String() { LocalFree(str_); } - LPWSTR *ptr() { return &str_; } - LPCWSTR c_str() const { return str_; } - }; - FMT_TRY { - String system_message; - if (FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | - FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, 0, - error_code, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), - reinterpret_cast(system_message.ptr()), 0, 0)) { - UTF16ToUTF8 utf8_message; - if (utf8_message.convert(system_message.c_str()) == ERROR_SUCCESS) { - out << message << ": " << utf8_message; - return; - } - } - } FMT_CATCH(...) {} - fmt::format_error_code(out, error_code, message); // 'fmt::' is for bcc32. -} - -#endif // FMT_USE_WINDOWS_H - -FMT_FUNC void fmt::internal::format_system_error( - fmt::Writer &out, int error_code, - fmt::StringRef message) FMT_NOEXCEPT { - FMT_TRY { - MemoryBuffer buffer; - buffer.resize(INLINE_BUFFER_SIZE); - for (;;) { - char *system_message = &buffer[0]; - int result = safe_strerror(error_code, system_message, buffer.size()); - if (result == 0) { - out << message << ": " << system_message; - return; - } - if (result != ERANGE) - break; // Can't get error message, report error code instead. - buffer.resize(buffer.size() * 2); - } - } FMT_CATCH(...) {} - fmt::format_error_code(out, error_code, message); // 'fmt::' is for bcc32. -} - -template -void fmt::internal::ArgMap::init(const ArgList &args) { - if (!map_.empty()) - return; - typedef internal::NamedArg NamedArg; - const NamedArg *named_arg = 0; - bool use_values = - args.type(ArgList::MAX_PACKED_ARGS - 1) == internal::Arg::NONE; - if (use_values) { - for (unsigned i = 0;/*nothing*/; ++i) { - internal::Arg::Type arg_type = args.type(i); - switch (arg_type) { - case internal::Arg::NONE: - return; - case internal::Arg::NAMED_ARG: - named_arg = static_cast(args.values_[i].pointer); - map_.insert(Pair(named_arg->name, *named_arg)); - break; - default: - /*nothing*/; - } - } - return; - } - for (unsigned i = 0; i != ArgList::MAX_PACKED_ARGS; ++i) { - internal::Arg::Type arg_type = args.type(i); - if (arg_type == internal::Arg::NAMED_ARG) { - named_arg = static_cast(args.args_[i].pointer); - map_.insert(Pair(named_arg->name, *named_arg)); - } - } - for (unsigned i = ArgList::MAX_PACKED_ARGS;/*nothing*/; ++i) { - switch (args.args_[i].type) { - case internal::Arg::NONE: - return; - case internal::Arg::NAMED_ARG: - named_arg = static_cast(args.args_[i].pointer); - map_.insert(Pair(named_arg->name, *named_arg)); - break; - default: - /*nothing*/; - } - } -} - -template -void fmt::internal::FixedBuffer::grow(std::size_t) { - FMT_THROW(std::runtime_error("buffer overflow")); -} - -template -template -void fmt::BasicWriter::write_str( - const Arg::StringValue &s, const FormatSpec &spec) { - // Check if StrChar is convertible to Char. - internal::CharTraits::convert(StrChar()); - if (spec.type_ && spec.type_ != 's') - internal::report_unknown_type(spec.type_, "string"); - const StrChar *str_value = s.value; - std::size_t str_size = s.size; - if (str_size == 0) { - if (!str_value) { - FMT_THROW(FormatError("string pointer is null")); - return; - } - } - std::size_t precision = spec.precision_; - if (spec.precision_ >= 0 && precision < str_size) - str_size = spec.precision_; - write_str(str_value, str_size, spec); -} - -template -inline Arg fmt::BasicFormatter::get_arg( - BasicStringRef arg_name, const char *&error) { - if (check_no_auto_index(error)) { - map_.init(args()); - const Arg *arg = map_.find(arg_name); - if (arg) - return *arg; - error = "argument not found"; - } - return Arg(); -} - -template -inline Arg fmt::BasicFormatter::parse_arg_index(const Char *&s) { - const char *error = 0; - Arg arg = *s < '0' || *s > '9' ? - next_arg(error) : get_arg(parse_nonnegative_int(s), error); - if (error) { - FMT_THROW(FormatError( - *s != '}' && *s != ':' ? "invalid format string" : error)); - } - return arg; -} - -template -inline Arg fmt::BasicFormatter::parse_arg_name(const Char *&s) { - assert(is_name_start(*s)); - const Char *start = s; - Char c; - do { - c = *++s; - } while (is_name_start(c) || ('0' <= c && c <= '9')); - const char *error = 0; - Arg arg = get_arg(fmt::BasicStringRef(start, s - start), error); - if (error) - FMT_THROW(fmt::FormatError(error)); - return arg; -} - -FMT_FUNC Arg fmt::internal::FormatterBase::do_get_arg( - unsigned arg_index, const char *&error) { - Arg arg = args_[arg_index]; - switch (arg.type) { - case Arg::NONE: - error = "argument index out of range"; - break; - case Arg::NAMED_ARG: - arg = *static_cast(arg.pointer); - default: - /*nothing*/; - } - return arg; -} - -inline Arg fmt::internal::FormatterBase::next_arg(const char *&error) { - if (next_arg_index_ >= 0) - return do_get_arg(next_arg_index_++, error); - error = "cannot switch from manual to automatic argument indexing"; - return Arg(); -} - -inline bool fmt::internal::FormatterBase::check_no_auto_index( - const char *&error) { - if (next_arg_index_ > 0) { - error = "cannot switch from automatic to manual argument indexing"; - return false; - } - next_arg_index_ = -1; - return true; -} - -inline Arg fmt::internal::FormatterBase::get_arg( - unsigned arg_index, const char *&error) { - return check_no_auto_index(error) ? do_get_arg(arg_index, error) : Arg(); -} - -template -void fmt::internal::PrintfFormatter::parse_flags( - FormatSpec &spec, const Char *&s) { - for (;;) { - switch (*s++) { - case '-': - spec.align_ = ALIGN_LEFT; - break; - case '+': - spec.flags_ |= SIGN_FLAG | PLUS_FLAG; - break; - case '0': - spec.fill_ = '0'; - break; - case ' ': - spec.flags_ |= SIGN_FLAG; - break; - case '#': - spec.flags_ |= HASH_FLAG; - break; - default: - --s; - return; - } - } -} - -template -Arg fmt::internal::PrintfFormatter::get_arg( - const Char *s, unsigned arg_index) { - (void)s; - const char *error = 0; - Arg arg = arg_index == UINT_MAX ? - next_arg(error) : FormatterBase::get_arg(arg_index - 1, error); - if (error) - FMT_THROW(FormatError(!*s ? "invalid format string" : error)); - return arg; -} - -template -unsigned fmt::internal::PrintfFormatter::parse_header( - const Char *&s, FormatSpec &spec) { - unsigned arg_index = UINT_MAX; - Char c = *s; - if (c >= '0' && c <= '9') { - // Parse an argument index (if followed by '$') or a width possibly - // preceded with '0' flag(s). - unsigned value = parse_nonnegative_int(s); - if (*s == '$') { // value is an argument index - ++s; - arg_index = value; - } else { - if (c == '0') - spec.fill_ = '0'; - if (value != 0) { - // Nonzero value means that we parsed width and don't need to - // parse it or flags again, so return now. - spec.width_ = value; - return arg_index; - } - } - } - parse_flags(spec, s); - // Parse width. - if (*s >= '0' && *s <= '9') { - spec.width_ = parse_nonnegative_int(s); - } else if (*s == '*') { - ++s; - spec.width_ = WidthHandler(spec).visit(get_arg(s)); - } - return arg_index; -} - -template -void fmt::internal::PrintfFormatter::format( - BasicWriter &writer, BasicCStringRef format_str) { - const Char *start = format_str.c_str(); - const Char *s = start; - while (*s) { - Char c = *s++; - if (c != '%') continue; - if (*s == c) { - write(writer, start, s); - start = ++s; - continue; - } - write(writer, start, s - 1); - - FormatSpec spec; - spec.align_ = ALIGN_RIGHT; - - // Parse argument index, flags and width. - unsigned arg_index = parse_header(s, spec); - - // Parse precision. - if (*s == '.') { - ++s; - if ('0' <= *s && *s <= '9') { - spec.precision_ = parse_nonnegative_int(s); - } else if (*s == '*') { - ++s; - spec.precision_ = PrecisionHandler().visit(get_arg(s)); - } - } - - Arg arg = get_arg(s, arg_index); - if (spec.flag(HASH_FLAG) && IsZeroInt().visit(arg)) - spec.flags_ &= ~HASH_FLAG; - if (spec.fill_ == '0') { - if (arg.type <= Arg::LAST_NUMERIC_TYPE) - spec.align_ = ALIGN_NUMERIC; - else - spec.fill_ = ' '; // Ignore '0' flag for non-numeric types. - } - - // Parse length and convert the argument to the required type. - switch (*s++) { - case 'h': - if (*s == 'h') - ArgConverter(arg, *++s).visit(arg); - else - ArgConverter(arg, *s).visit(arg); - break; - case 'l': - if (*s == 'l') - ArgConverter(arg, *++s).visit(arg); - else - ArgConverter(arg, *s).visit(arg); - break; - case 'j': - ArgConverter(arg, *s).visit(arg); - break; - case 'z': - ArgConverter(arg, *s).visit(arg); - break; - case 't': - ArgConverter(arg, *s).visit(arg); - break; - case 'L': - // printf produces garbage when 'L' is omitted for long double, no - // need to do the same. - break; - default: - --s; - ArgConverter(arg, *s).visit(arg); - } - - // Parse type. - if (!*s) - FMT_THROW(FormatError("invalid format string")); - spec.type_ = static_cast(*s++); - if (arg.type <= Arg::LAST_INTEGER_TYPE) { - // Normalize type. - switch (spec.type_) { - case 'i': case 'u': - spec.type_ = 'd'; - break; - case 'c': - // TODO: handle wchar_t - CharConverter(arg).visit(arg); - break; - } - } - - start = s; - - // Format argument. - internal::PrintfArgFormatter(writer, spec).visit(arg); - } - write(writer, start, s); -} - -template -const Char *fmt::BasicFormatter::format( - const Char *&format_str, const Arg &arg) { - const Char *s = format_str; - FormatSpec spec; - if (*s == ':') { - if (arg.type == Arg::CUSTOM) { - arg.custom.format(this, arg.custom.value, &s); - return s; - } - ++s; - // Parse fill and alignment. - if (Char c = *s) { - const Char *p = s + 1; - spec.align_ = ALIGN_DEFAULT; - do { - switch (*p) { - case '<': - spec.align_ = ALIGN_LEFT; - break; - case '>': - spec.align_ = ALIGN_RIGHT; - break; - case '=': - spec.align_ = ALIGN_NUMERIC; - break; - case '^': - spec.align_ = ALIGN_CENTER; - break; - } - if (spec.align_ != ALIGN_DEFAULT) { - if (p != s) { - if (c == '}') break; - if (c == '{') - FMT_THROW(FormatError("invalid fill character '{'")); - s += 2; - spec.fill_ = c; - } else ++s; - if (spec.align_ == ALIGN_NUMERIC) - require_numeric_argument(arg, '='); - break; - } - } while (--p >= s); - } - - // Parse sign. - switch (*s) { - case '+': - check_sign(s, arg); - spec.flags_ |= SIGN_FLAG | PLUS_FLAG; - break; - case '-': - check_sign(s, arg); - spec.flags_ |= MINUS_FLAG; - break; - case ' ': - check_sign(s, arg); - spec.flags_ |= SIGN_FLAG; - break; - } - - if (*s == '#') { - require_numeric_argument(arg, '#'); - spec.flags_ |= HASH_FLAG; - ++s; - } - - // Parse zero flag. - if (*s == '0') { - require_numeric_argument(arg, '0'); - spec.align_ = ALIGN_NUMERIC; - spec.fill_ = '0'; - ++s; - } - - // Parse width. - if ('0' <= *s && *s <= '9') { - spec.width_ = parse_nonnegative_int(s); - } else if (*s == '{') { - ++s; - Arg width_arg = is_name_start(*s) ? - parse_arg_name(s) : parse_arg_index(s); - if (*s++ != '}') - FMT_THROW(FormatError("invalid format string")); - ULongLong value = 0; - switch (width_arg.type) { - case Arg::INT: - if (width_arg.int_value < 0) - FMT_THROW(FormatError("negative width")); - value = width_arg.int_value; - break; - case Arg::UINT: - value = width_arg.uint_value; - break; - case Arg::LONG_LONG: - if (width_arg.long_long_value < 0) - FMT_THROW(FormatError("negative width")); - value = width_arg.long_long_value; - break; - case Arg::ULONG_LONG: - value = width_arg.ulong_long_value; - break; - default: - FMT_THROW(FormatError("width is not integer")); - } - if (value > INT_MAX) - FMT_THROW(FormatError("number is too big")); - spec.width_ = static_cast(value); - } - - // Parse precision. - if (*s == '.') { - ++s; - spec.precision_ = 0; - if ('0' <= *s && *s <= '9') { - spec.precision_ = parse_nonnegative_int(s); - } else if (*s == '{') { - ++s; - Arg precision_arg = - is_name_start(*s) ? parse_arg_name(s) : parse_arg_index(s); - if (*s++ != '}') - FMT_THROW(FormatError("invalid format string")); - ULongLong value = 0; - switch (precision_arg.type) { - case Arg::INT: - if (precision_arg.int_value < 0) - FMT_THROW(FormatError("negative precision")); - value = precision_arg.int_value; - break; - case Arg::UINT: - value = precision_arg.uint_value; - break; - case Arg::LONG_LONG: - if (precision_arg.long_long_value < 0) - FMT_THROW(FormatError("negative precision")); - value = precision_arg.long_long_value; - break; - case Arg::ULONG_LONG: - value = precision_arg.ulong_long_value; - break; - default: - FMT_THROW(FormatError("precision is not integer")); - } - if (value > INT_MAX) - FMT_THROW(FormatError("number is too big")); - spec.precision_ = static_cast(value); - } else { - FMT_THROW(FormatError("missing precision specifier")); - } - if (arg.type <= Arg::LAST_INTEGER_TYPE || arg.type == Arg::POINTER) { - FMT_THROW(FormatError( - fmt::format("precision not allowed in {} format specifier", - arg.type == Arg::POINTER ? "pointer" : "integer"))); - } - } - - // Parse type. - if (*s != '}' && *s) - spec.type_ = static_cast(*s++); - } - - if (*s++ != '}') - FMT_THROW(FormatError("missing '}' in format string")); - - // Format argument. - internal::ArgFormatter(*this, spec, s - 1).visit(arg); - return s; -} - -template -void fmt::BasicFormatter::format(BasicCStringRef format_str) { - const Char *s = format_str.c_str(); - const Char *start = s; - while (*s) { - Char c = *s++; - if (c != '{' && c != '}') continue; - if (*s == c) { - write(writer_, start, s); - start = ++s; - continue; - } - if (c == '}') - FMT_THROW(FormatError("unmatched '}' in format string")); - write(writer_, start, s - 1); - Arg arg = is_name_start(*s) ? parse_arg_name(s) : parse_arg_index(s); - start = s = format(s, arg); - } - write(writer_, start, s); -} - -FMT_FUNC void fmt::report_system_error( - int error_code, fmt::StringRef message) FMT_NOEXCEPT { - // 'fmt::' is for bcc32. - fmt::report_error(internal::format_system_error, error_code, message); -} - -#if FMT_USE_WINDOWS_H -FMT_FUNC void fmt::report_windows_error( - int error_code, fmt::StringRef message) FMT_NOEXCEPT { - // 'fmt::' is for bcc32. - fmt::report_error(internal::format_windows_error, error_code, message); -} -#endif - -FMT_FUNC void fmt::print(std::FILE *f, CStringRef format_str, ArgList args) { - MemoryWriter w; - w.write(format_str, args); - std::fwrite(w.data(), 1, w.size(), f); -} - -FMT_FUNC void fmt::print(CStringRef format_str, ArgList args) { - print(stdout, format_str, args); -} - -FMT_FUNC void fmt::print(std::ostream &os, CStringRef format_str, ArgList args) { - MemoryWriter w; - w.write(format_str, args); - os.write(w.data(), w.size()); -} - -FMT_FUNC void fmt::print_colored(Color c, CStringRef format, ArgList args) { - char escape[] = "\x1b[30m"; - escape[3] = static_cast('0' + c); - std::fputs(escape, stdout); - print(format, args); - std::fputs(RESET_COLOR, stdout); -} - -FMT_FUNC int fmt::fprintf(std::FILE *f, CStringRef format, ArgList args) { - MemoryWriter w; - printf(w, format, args); - std::size_t size = w.size(); - return std::fwrite(w.data(), 1, size, f) < size ? -1 : static_cast(size); -} - -#ifndef FMT_HEADER_ONLY - -template struct fmt::internal::BasicData; - -// Explicit instantiations for char. - -template void fmt::internal::FixedBuffer::grow(std::size_t); - -template const char *fmt::BasicFormatter::format( - const char *&format_str, const fmt::internal::Arg &arg); - -template void fmt::BasicFormatter::format(CStringRef format); - -template void fmt::internal::PrintfFormatter::format( - BasicWriter &writer, CStringRef format); - -template int fmt::internal::CharTraits::format_float( - char *buffer, std::size_t size, const char *format, - unsigned width, int precision, double value); - -template int fmt::internal::CharTraits::format_float( - char *buffer, std::size_t size, const char *format, - unsigned width, int precision, long double value); - -// Explicit instantiations for wchar_t. - -template void fmt::internal::FixedBuffer::grow(std::size_t); - -template const wchar_t *fmt::BasicFormatter::format( - const wchar_t *&format_str, const fmt::internal::Arg &arg); - -template void fmt::BasicFormatter::format( - BasicCStringRef format); - -template void fmt::internal::PrintfFormatter::format( - BasicWriter &writer, WCStringRef format); - -template int fmt::internal::CharTraits::format_float( - wchar_t *buffer, std::size_t size, const wchar_t *format, - unsigned width, int precision, double value); - -template int fmt::internal::CharTraits::format_float( - wchar_t *buffer, std::size_t size, const wchar_t *format, - unsigned width, int precision, long double value); - -#endif // FMT_HEADER_ONLY - -#ifdef _MSC_VER -# pragma warning(pop) -#endif diff --git a/vendor/cppformat/format.h b/vendor/cppformat/format.h deleted file mode 100644 index 568123d8..00000000 --- a/vendor/cppformat/format.h +++ /dev/null @@ -1,3259 +0,0 @@ -/* - Formatting library for C++ - - Copyright (c) 2012 - 2015, Victor Zverovich - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - - 1. Redistributions of source code must retain the above copyright notice, this - list of conditions and the following disclaimer. - 2. Redistributions in binary form must reproduce the above copyright notice, - this list of conditions and the following disclaimer in the documentation - and/or other materials provided with the distribution. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND - ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR - ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef FMT_FORMAT_H_ -#define FMT_FORMAT_H_ - -#if defined _MSC_VER && _MSC_VER <= 1500 -typedef unsigned int uint32_t; -typedef unsigned long long uint64_t; -typedef long long intmax_t; -#else -#include -#endif - -#include -#include -#include -#include -#include -#include -#include -#include - -#ifndef FMT_USE_IOSTREAMS -# define FMT_USE_IOSTREAMS 1 -#endif - -#if FMT_USE_IOSTREAMS -# include -#endif - -#ifdef _SECURE_SCL -# define FMT_SECURE_SCL _SECURE_SCL -#else -# define FMT_SECURE_SCL 0 -#endif - -#if FMT_SECURE_SCL -# include -#endif - -#ifdef _MSC_VER -# include // _BitScanReverse, _BitScanReverse64 - -namespace fmt { -namespace internal { -# pragma intrinsic(_BitScanReverse) -inline uint32_t clz(uint32_t x) { - unsigned long r = 0; - _BitScanReverse(&r, x); - return 31 - r; -} -# define FMT_BUILTIN_CLZ(n) fmt::internal::clz(n) - -# ifdef _WIN64 -# pragma intrinsic(_BitScanReverse64) -# endif - -inline uint32_t clzll(uint64_t x) { - unsigned long r = 0; -# ifdef _WIN64 - _BitScanReverse64(&r, x); -# else - // Scan the high 32 bits. - if (_BitScanReverse(&r, static_cast(x >> 32))) - return 63 - (r + 32); - - // Scan the low 32 bits. - _BitScanReverse(&r, static_cast(x)); -# endif - return 63 - r; -} -# define FMT_BUILTIN_CLZLL(n) fmt::internal::clzll(n) -} -} -#endif - -#ifdef __GNUC__ -# define FMT_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__) -# define FMT_GCC_EXTENSION __extension__ -# if FMT_GCC_VERSION >= 406 -# pragma GCC diagnostic push -// Disable the warning about "long long" which is sometimes reported even -// when using __extension__. -# pragma GCC diagnostic ignored "-Wlong-long" -// Disable the warning about declaration shadowing because it affects too -// many valid cases. -# pragma GCC diagnostic ignored "-Wshadow" -// Disable the warning about implicit conversions that may change the sign of -// an integer; silencing it otherwise would require many explicit casts. -# pragma GCC diagnostic ignored "-Wsign-conversion" -# endif -# if __cplusplus >= 201103L || defined __GXX_EXPERIMENTAL_CXX0X__ -# define FMT_HAS_GXX_CXX11 1 -# endif -#else -# define FMT_GCC_EXTENSION -#endif - -#if defined(__clang__) && !defined(__INTEL_COMPILER) -# pragma clang diagnostic push -# pragma clang diagnostic ignored "-Wdocumentation" -#endif - -#ifdef __GNUC_LIBSTD__ -# define FMT_GNUC_LIBSTD_VERSION (__GNUC_LIBSTD__ * 100 + __GNUC_LIBSTD_MINOR__) -#endif - -#ifdef __has_feature -# define FMT_HAS_FEATURE(x) __has_feature(x) -#else -# define FMT_HAS_FEATURE(x) 0 -#endif - -#ifdef __has_builtin -# define FMT_HAS_BUILTIN(x) __has_builtin(x) -#else -# define FMT_HAS_BUILTIN(x) 0 -#endif - -#ifdef __has_cpp_attribute -# define FMT_HAS_CPP_ATTRIBUTE(x) __has_cpp_attribute(x) -#else -# define FMT_HAS_CPP_ATTRIBUTE(x) 0 -#endif - -#ifndef FMT_USE_VARIADIC_TEMPLATES -// Variadic templates are available in GCC since version 4.4 -// (http://gcc.gnu.org/projects/cxx0x.html) and in Visual C++ -// since version 2013. -# define FMT_USE_VARIADIC_TEMPLATES \ - (FMT_HAS_FEATURE(cxx_variadic_templates) || \ - (FMT_GCC_VERSION >= 404 && FMT_HAS_GXX_CXX11) || _MSC_VER >= 1800) -#endif - -#ifndef FMT_USE_RVALUE_REFERENCES -// Don't use rvalue references when compiling with clang and an old libstdc++ -// as the latter doesn't provide std::move. -# if defined(FMT_GNUC_LIBSTD_VERSION) && FMT_GNUC_LIBSTD_VERSION <= 402 -# define FMT_USE_RVALUE_REFERENCES 0 -# else -# define FMT_USE_RVALUE_REFERENCES \ - (FMT_HAS_FEATURE(cxx_rvalue_references) || \ - (FMT_GCC_VERSION >= 403 && FMT_HAS_GXX_CXX11) || _MSC_VER >= 1600) -# endif -#endif - -#if FMT_USE_RVALUE_REFERENCES -# include // for std::move -#endif - -// Define FMT_USE_NOEXCEPT to make C++ Format use noexcept (C++11 feature). -#ifndef FMT_USE_NOEXCEPT -# define FMT_USE_NOEXCEPT 0 -#endif - -#ifndef FMT_NOEXCEPT -# if FMT_USE_NOEXCEPT || FMT_HAS_FEATURE(cxx_noexcept) || \ - (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || \ - _MSC_VER >= 1900 -# define FMT_NOEXCEPT noexcept -# else -# define FMT_NOEXCEPT throw() -# endif -#endif - -// A macro to disallow the copy constructor and operator= functions -// This should be used in the private: declarations for a class -#ifndef FMT_USE_DELETED_FUNCTIONS -# define FMT_USE_DELETED_FUNCTIONS 0 -#endif - -#if FMT_USE_DELETED_FUNCTIONS || FMT_HAS_FEATURE(cxx_deleted_functions) || \ - (FMT_GCC_VERSION >= 404 && FMT_HAS_GXX_CXX11) || _MSC_VER >= 1800 -# define FMT_DELETED_OR_UNDEFINED = delete -# define FMT_DISALLOW_COPY_AND_ASSIGN(TypeName) \ - TypeName(const TypeName&) = delete; \ - TypeName& operator=(const TypeName&) = delete -#else -# define FMT_DELETED_OR_UNDEFINED -# define FMT_DISALLOW_COPY_AND_ASSIGN(TypeName) \ - TypeName(const TypeName&); \ - TypeName& operator=(const TypeName&) -#endif - -#ifndef FMT_USE_USER_DEFINED_LITERALS -// All compilers which support UDLs also support variadic templates. This -// makes the fmt::literals implementation easier. However, an explicit check -// for variadic templates is added here just in case. -# define FMT_USE_USER_DEFINED_LITERALS \ - FMT_USE_VARIADIC_TEMPLATES && FMT_USE_RVALUE_REFERENCES && \ - (FMT_HAS_FEATURE(cxx_user_literals) || \ - (FMT_GCC_VERSION >= 407 && FMT_HAS_GXX_CXX11) || _MSC_VER >= 1900) -#endif - -#ifndef FMT_ASSERT -# define FMT_ASSERT(condition, message) assert((condition) && message) -#endif - -namespace fmt { -namespace internal { -struct DummyInt { - int data[2]; - operator int() const { return 0; } -}; -typedef std::numeric_limits FPUtil; - -// Dummy implementations of system functions such as signbit and ecvt called -// if the latter are not available. -inline DummyInt signbit(...) { return DummyInt(); } -inline DummyInt _ecvt_s(...) { return DummyInt(); } -inline DummyInt isinf(...) { return DummyInt(); } -inline DummyInt _finite(...) { return DummyInt(); } -inline DummyInt isnan(...) { return DummyInt(); } -inline DummyInt _isnan(...) { return DummyInt(); } - -// A helper function to suppress bogus "conditional expression is constant" -// warnings. -template -inline T check(T value) { return value; } -} -} // namespace fmt - -namespace std { -// Standard permits specialization of std::numeric_limits. This specialization -// is used to resolve ambiguity between isinf and std::isinf in glibc: -// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48891 -// and the same for isnan and signbit. -template <> -class numeric_limits : - public std::numeric_limits { - public: - // Portable version of isinf. - template - static bool isinfinity(T x) { - using namespace fmt::internal; - // The resolution "priority" is: - // isinf macro > std::isinf > ::isinf > fmt::internal::isinf - if (check(sizeof(isinf(x)) == sizeof(bool) || - sizeof(isinf(x)) == sizeof(int))) { - return !!isinf(x); - } - return !_finite(static_cast(x)); - } - - // Portable version of isnan. - template - static bool isnotanumber(T x) { - using namespace fmt::internal; - if (check(sizeof(isnan(x)) == sizeof(bool) || - sizeof(isnan(x)) == sizeof(int))) { - return !!isnan(x); - } - return _isnan(static_cast(x)) != 0; - } - - // Portable version of signbit. - static bool isnegative(double x) { - using namespace fmt::internal; - if (check(sizeof(signbit(x)) == sizeof(int))) - return !!signbit(x); - if (x < 0) return true; - if (!isnotanumber(x)) return false; - int dec = 0, sign = 0; - char buffer[2]; // The buffer size must be >= 2 or _ecvt_s will fail. - _ecvt_s(buffer, sizeof(buffer), x, 0, &dec, &sign); - return sign != 0; - } -}; -} // namespace std - -namespace fmt { - -// Fix the warning about long long on older versions of GCC -// that don't support the diagnostic pragma. -FMT_GCC_EXTENSION typedef long long LongLong; -FMT_GCC_EXTENSION typedef unsigned long long ULongLong; - -#if FMT_USE_RVALUE_REFERENCES -using std::move; -#endif - -template -class BasicWriter; - -typedef BasicWriter Writer; -typedef BasicWriter WWriter; - -template -class BasicFormatter; - -template -void format(BasicFormatter &f, const Char *&format_str, const T &value); - -/** - \rst - A string reference. It can be constructed from a C string or ``std::string``. - - You can use one of the following typedefs for common character types: - - +------------+-------------------------+ - | Type | Definition | - +============+=========================+ - | StringRef | BasicStringRef | - +------------+-------------------------+ - | WStringRef | BasicStringRef | - +------------+-------------------------+ - - This class is most useful as a parameter type to allow passing - different types of strings to a function, for example:: - - template - std::string format(StringRef format_str, const Args & ... args); - - format("{}", 42); - format(std::string("{}"), 42); - \endrst - */ -template -class BasicStringRef { - private: - const Char *data_; - std::size_t size_; - - public: - /** Constructs a string reference object from a C string and a size. */ - BasicStringRef(const Char *s, std::size_t size) : data_(s), size_(size) {} - - /** - \rst - Constructs a string reference object from a C string computing - the size with ``std::char_traits::length``. - \endrst - */ - BasicStringRef(const Char *s) - : data_(s), size_(std::char_traits::length(s)) {} - - /** - \rst - Constructs a string reference from an ``std::string`` object. - \endrst - */ - BasicStringRef(const std::basic_string &s) - : data_(s.c_str()), size_(s.size()) {} - - /** - \rst - Converts a string reference to an ``std::string`` object. - \endrst - */ - std::basic_string to_string() const { - return std::basic_string(data_, size_); - } - - /** Returns the pointer to a C string. */ - const Char *data() const { return data_; } - - /** Returns the string size. */ - std::size_t size() const { return size_; } - - // Lexicographically compare this string reference to other. - int compare(BasicStringRef other) const { - std::size_t size = std::min(size_, other.size_); - int result = std::char_traits::compare(data_, other.data_, size); - if (result == 0) - result = size_ == other.size_ ? 0 : (size_ < other.size_ ? -1 : 1); - return result; - } - - friend bool operator==(BasicStringRef lhs, BasicStringRef rhs) { - return lhs.compare(rhs) == 0; - } - friend bool operator!=(BasicStringRef lhs, BasicStringRef rhs) { - return lhs.compare(rhs) != 0; - } - friend bool operator<(BasicStringRef lhs, BasicStringRef rhs) { - return lhs.compare(rhs) < 0; - } - friend bool operator<=(BasicStringRef lhs, BasicStringRef rhs) { - return lhs.compare(rhs) <= 0; - } - friend bool operator>(BasicStringRef lhs, BasicStringRef rhs) { - return lhs.compare(rhs) > 0; - } - friend bool operator>=(BasicStringRef lhs, BasicStringRef rhs) { - return lhs.compare(rhs) >= 0; - } -}; - -typedef BasicStringRef StringRef; -typedef BasicStringRef WStringRef; - -/** - \rst - A reference to a null terminated string. It can be constructed from a C - string or ``std::string``. - - You can use one of the following typedefs for common character types: - - +-------------+--------------------------+ - | Type | Definition | - +=============+==========================+ - | CStringRef | BasicCStringRef | - +-------------+--------------------------+ - | WCStringRef | BasicCStringRef | - +-------------+--------------------------+ - - This class is most useful as a parameter type to allow passing - different types of strings to a function, for example:: - - template - std::string format(CStringRef format_str, const Args & ... args); - - format("{}", 42); - format(std::string("{}"), 42); - \endrst - */ -template -class BasicCStringRef { - private: - const Char *data_; - - public: - /** Constructs a string reference object from a C string. */ - BasicCStringRef(const Char *s) : data_(s) {} - - /** - \rst - Constructs a string reference from an ``std::string`` object. - \endrst - */ - BasicCStringRef(const std::basic_string &s) : data_(s.c_str()) {} - - /** Returns the pointer to a C string. */ - const Char *c_str() const { return data_; } -}; - -typedef BasicCStringRef CStringRef; -typedef BasicCStringRef WCStringRef; - -/** - A formatting error such as invalid format string. -*/ -class FormatError : public std::runtime_error { - public: - explicit FormatError(CStringRef message) - : std::runtime_error(message.c_str()) {} -}; - -namespace internal { -// The number of characters to store in the MemoryBuffer object itself -// to avoid dynamic memory allocation. -enum { INLINE_BUFFER_SIZE = 500 }; - -#if FMT_SECURE_SCL -// Use checked iterator to avoid warnings on MSVC. -template -inline stdext::checked_array_iterator make_ptr(T *ptr, std::size_t size) { - return stdext::checked_array_iterator(ptr, size); -} -#else -template -inline T *make_ptr(T *ptr, std::size_t) { return ptr; } -#endif -} // namespace internal - -/** - \rst - A buffer supporting a subset of ``std::vector``'s operations. - \endrst - */ -template -class Buffer { - private: - FMT_DISALLOW_COPY_AND_ASSIGN(Buffer); - - protected: - T *ptr_; - std::size_t size_; - std::size_t capacity_; - - Buffer(T *ptr = 0, std::size_t capacity = 0) - : ptr_(ptr), size_(0), capacity_(capacity) {} - - /** - \rst - Increases the buffer capacity to hold at least *size* elements updating - ``ptr_`` and ``capacity_``. - \endrst - */ - virtual void grow(std::size_t size) = 0; - - public: - virtual ~Buffer() {} - - /** Returns the size of this buffer. */ - std::size_t size() const { return size_; } - - /** Returns the capacity of this buffer. */ - std::size_t capacity() const { return capacity_; } - - /** - Resizes the buffer. If T is a POD type new elements may not be initialized. - */ - void resize(std::size_t new_size) { - if (new_size > capacity_) - grow(new_size); - size_ = new_size; - } - - /** - \rst - Reserves space to store at least *capacity* elements. - \endrst - */ - void reserve(std::size_t capacity) { - if (capacity > capacity_) - grow(capacity); - } - - void clear() FMT_NOEXCEPT { size_ = 0; } - - void push_back(const T &value) { - if (size_ == capacity_) - grow(size_ + 1); - ptr_[size_++] = value; - } - - /** Appends data to the end of the buffer. */ - template - void append(const U *begin, const U *end); - - T &operator[](std::size_t index) { return ptr_[index]; } - const T &operator[](std::size_t index) const { return ptr_[index]; } -}; - -template -template -void Buffer::append(const U *begin, const U *end) { - assert(begin <= end); - std::size_t new_size = size_ + (end - begin); - if (new_size > capacity_) - grow(new_size); - std::copy(begin, end, internal::make_ptr(ptr_, capacity_) + size_); - size_ = new_size; -} - -namespace internal { - -// A memory buffer for POD types with the first SIZE elements stored in -// the object itself. -template > -class MemoryBuffer : private Allocator, public Buffer { - private: - T data_[SIZE]; - - // Deallocate memory allocated by the buffer. - void deallocate() { - if (this->ptr_ != data_) Allocator::deallocate(this->ptr_, this->capacity_); - } - - protected: - void grow(std::size_t size); - - public: - explicit MemoryBuffer(const Allocator &alloc = Allocator()) - : Allocator(alloc), Buffer(data_, SIZE) {} - ~MemoryBuffer() { deallocate(); } - -#if FMT_USE_RVALUE_REFERENCES - private: - // Move data from other to this buffer. - void move(MemoryBuffer &other) { - Allocator &this_alloc = *this, &other_alloc = other; - this_alloc = std::move(other_alloc); - this->size_ = other.size_; - this->capacity_ = other.capacity_; - if (other.ptr_ == other.data_) { - this->ptr_ = data_; - std::copy(other.data_, - other.data_ + this->size_, make_ptr(data_, this->capacity_)); - } else { - this->ptr_ = other.ptr_; - // Set pointer to the inline array so that delete is not called - // when deallocating. - other.ptr_ = other.data_; - } - } - - public: - MemoryBuffer(MemoryBuffer &&other) { - move(other); - } - - MemoryBuffer &operator=(MemoryBuffer &&other) { - assert(this != &other); - deallocate(); - move(other); - return *this; - } -#endif - - // Returns a copy of the allocator associated with this buffer. - Allocator get_allocator() const { return *this; } -}; - -template -void MemoryBuffer::grow(std::size_t size) { - std::size_t new_capacity = - (std::max)(size, this->capacity_ + this->capacity_ / 2); - T *new_ptr = this->allocate(new_capacity); - // The following code doesn't throw, so the raw pointer above doesn't leak. - std::copy(this->ptr_, - this->ptr_ + this->size_, make_ptr(new_ptr, new_capacity)); - std::size_t old_capacity = this->capacity_; - T *old_ptr = this->ptr_; - this->capacity_ = new_capacity; - this->ptr_ = new_ptr; - // deallocate may throw (at least in principle), but it doesn't matter since - // the buffer already uses the new storage and will deallocate it in case - // of exception. - if (old_ptr != data_) - Allocator::deallocate(old_ptr, old_capacity); -} - -// A fixed-size buffer. -template -class FixedBuffer : public fmt::Buffer { - public: - FixedBuffer(Char *array, std::size_t size) : fmt::Buffer(array, size) {} - - protected: - void grow(std::size_t size); -}; - -template -class BasicCharTraits { - public: -#if FMT_SECURE_SCL - typedef stdext::checked_array_iterator CharPtr; -#else - typedef Char *CharPtr; -#endif - static Char cast(wchar_t value) { return static_cast(value); } -}; - -template -class CharTraits; - -template <> -class CharTraits : public BasicCharTraits { - private: - // Conversion from wchar_t to char is not allowed. - static char convert(wchar_t); - - public: - static char convert(char value) { return value; } - - // Formats a floating-point number. - template - static int format_float(char *buffer, std::size_t size, - const char *format, unsigned width, int precision, T value); -}; - -template <> -class CharTraits : public BasicCharTraits { - public: - static wchar_t convert(char value) { return value; } - static wchar_t convert(wchar_t value) { return value; } - - template - static int format_float(wchar_t *buffer, std::size_t size, - const wchar_t *format, unsigned width, int precision, T value); -}; - -// Checks if a number is negative - used to avoid warnings. -template -struct SignChecker { - template - static bool is_negative(T value) { return value < 0; } -}; - -template <> -struct SignChecker { - template - static bool is_negative(T) { return false; } -}; - -// Returns true if value is negative, false otherwise. -// Same as (value < 0) but doesn't produce warnings if T is an unsigned type. -template -inline bool is_negative(T value) { - return SignChecker::is_signed>::is_negative(value); -} - -// Selects uint32_t if FitsIn32Bits is true, uint64_t otherwise. -template -struct TypeSelector { typedef uint32_t Type; }; - -template <> -struct TypeSelector { typedef uint64_t Type; }; - -template -struct IntTraits { - // Smallest of uint32_t and uint64_t that is large enough to represent - // all values of T. - typedef typename - TypeSelector::digits <= 32>::Type MainType; -}; - -// MakeUnsigned::Type gives an unsigned type corresponding to integer type T. -template -struct MakeUnsigned { typedef T Type; }; - -#define FMT_SPECIALIZE_MAKE_UNSIGNED(T, U) \ - template <> \ - struct MakeUnsigned { typedef U Type; } - -FMT_SPECIALIZE_MAKE_UNSIGNED(char, unsigned char); -FMT_SPECIALIZE_MAKE_UNSIGNED(signed char, unsigned char); -FMT_SPECIALIZE_MAKE_UNSIGNED(short, unsigned short); -FMT_SPECIALIZE_MAKE_UNSIGNED(int, unsigned); -FMT_SPECIALIZE_MAKE_UNSIGNED(long, unsigned long); -FMT_SPECIALIZE_MAKE_UNSIGNED(LongLong, ULongLong); - -void report_unknown_type(char code, const char *type); - -// Static data is placed in this class template to allow header-only -// configuration. -template -struct BasicData { - static const uint32_t POWERS_OF_10_32[]; - static const uint64_t POWERS_OF_10_64[]; - static const char DIGITS[]; -}; - -typedef BasicData<> Data; - -#if FMT_GCC_VERSION >= 400 || FMT_HAS_BUILTIN(__builtin_clz) -# define FMT_BUILTIN_CLZ(n) __builtin_clz(n) -#endif - -#if FMT_GCC_VERSION >= 400 || FMT_HAS_BUILTIN(__builtin_clzll) -# define FMT_BUILTIN_CLZLL(n) __builtin_clzll(n) -#endif - -#ifdef FMT_BUILTIN_CLZLL -// Returns the number of decimal digits in n. Leading zeros are not counted -// except for n == 0 in which case count_digits returns 1. -inline unsigned count_digits(uint64_t n) { - // Based on http://graphics.stanford.edu/~seander/bithacks.html#IntegerLog10 - // and the benchmark https://github.com/localvoid/cxx-benchmark-count-digits. - unsigned t = (64 - FMT_BUILTIN_CLZLL(n | 1)) * 1233 >> 12; - return t - (n < Data::POWERS_OF_10_64[t]) + 1; -} -#else -// Fallback version of count_digits used when __builtin_clz is not available. -inline unsigned count_digits(uint64_t n) { - unsigned count = 1; - for (;;) { - // Integer division is slow so do it for a group of four digits instead - // of for every digit. The idea comes from the talk by Alexandrescu - // "Three Optimization Tips for C++". See speed-test for a comparison. - if (n < 10) return count; - if (n < 100) return count + 1; - if (n < 1000) return count + 2; - if (n < 10000) return count + 3; - n /= 10000u; - count += 4; - } -} -#endif - -#ifdef FMT_BUILTIN_CLZ -// Optional version of count_digits for better performance on 32-bit platforms. -inline unsigned count_digits(uint32_t n) { - uint32_t t = (32 - FMT_BUILTIN_CLZ(n | 1)) * 1233 >> 12; - return t - (n < Data::POWERS_OF_10_32[t]) + 1; -} -#endif - -// Formats a decimal unsigned integer value writing into buffer. -template -inline void format_decimal(Char *buffer, UInt value, unsigned num_digits) { - buffer += num_digits; - while (value >= 100) { - // Integer division is slow so do it for a group of two digits instead - // of for every digit. The idea comes from the talk by Alexandrescu - // "Three Optimization Tips for C++". See speed-test for a comparison. - unsigned index = static_cast((value % 100) * 2); - value /= 100; - *--buffer = Data::DIGITS[index + 1]; - *--buffer = Data::DIGITS[index]; - } - if (value < 10) { - *--buffer = static_cast('0' + value); - return; - } - unsigned index = static_cast(value * 2); - *--buffer = Data::DIGITS[index + 1]; - *--buffer = Data::DIGITS[index]; -} - -#ifndef _WIN32 -# define FMT_USE_WINDOWS_H 0 -#elif !defined(FMT_USE_WINDOWS_H) -# define FMT_USE_WINDOWS_H 1 -#endif - -// Define FMT_USE_WINDOWS_H to 0 to disable use of windows.h. -// All the functionality that relies on it will be disabled too. -#if FMT_USE_WINDOWS_H -// A converter from UTF-8 to UTF-16. -// It is only provided for Windows since other systems support UTF-8 natively. -class UTF8ToUTF16 { - private: - MemoryBuffer buffer_; - - public: - explicit UTF8ToUTF16(StringRef s); - operator WStringRef() const { return WStringRef(&buffer_[0], size()); } - size_t size() const { return buffer_.size() - 1; } - const wchar_t *c_str() const { return &buffer_[0]; } - std::wstring str() const { return std::wstring(&buffer_[0], size()); } -}; - -// A converter from UTF-16 to UTF-8. -// It is only provided for Windows since other systems support UTF-8 natively. -class UTF16ToUTF8 { - private: - MemoryBuffer buffer_; - - public: - UTF16ToUTF8() {} - explicit UTF16ToUTF8(WStringRef s); - operator StringRef() const { return StringRef(&buffer_[0], size()); } - size_t size() const { return buffer_.size() - 1; } - const char *c_str() const { return &buffer_[0]; } - std::string str() const { return std::string(&buffer_[0], size()); } - - // Performs conversion returning a system error code instead of - // throwing exception on conversion error. This method may still throw - // in case of memory allocation error. - int convert(WStringRef s); -}; - -void format_windows_error(fmt::Writer &out, int error_code, - fmt::StringRef message) FMT_NOEXCEPT; -#endif - -void format_system_error(fmt::Writer &out, int error_code, - fmt::StringRef message) FMT_NOEXCEPT; - -// A formatting argument value. -struct Value { - template - struct StringValue { - const Char *value; - std::size_t size; - }; - - typedef void (*FormatFunc)( - void *formatter, const void *arg, void *format_str_ptr); - - struct CustomValue { - const void *value; - FormatFunc format; - }; - - union { - int int_value; - unsigned uint_value; - LongLong long_long_value; - ULongLong ulong_long_value; - double double_value; - long double long_double_value; - const void *pointer; - StringValue string; - StringValue sstring; - StringValue ustring; - StringValue wstring; - CustomValue custom; - }; - - enum Type { - NONE, NAMED_ARG, - // Integer types should go first, - INT, UINT, LONG_LONG, ULONG_LONG, BOOL, CHAR, LAST_INTEGER_TYPE = CHAR, - // followed by floating-point types. - DOUBLE, LONG_DOUBLE, LAST_NUMERIC_TYPE = LONG_DOUBLE, - CSTRING, STRING, WSTRING, POINTER, CUSTOM - }; -}; - -// A formatting argument. It is a POD type to allow storage in -// internal::MemoryBuffer. -struct Arg : Value { - Type type; -}; - -template -struct NamedArg; - -template -struct Null {}; - -// A helper class template to enable or disable overloads taking wide -// characters and strings in MakeValue. -template -struct WCharHelper { - typedef Null Supported; - typedef T Unsupported; -}; - -template -struct WCharHelper { - typedef T Supported; - typedef Null Unsupported; -}; - -typedef char Yes[1]; -typedef char No[2]; - -// These are non-members to workaround an overload resolution bug in bcc32. -Yes &convert(fmt::ULongLong); -Yes &convert(std::ostream &); -No &convert(...); - -template -T &get(); - -struct DummyStream : std::ostream { - // Hide all operator<< overloads from std::ostream. - void operator<<(Null<>); -}; - -No &operator<<(std::ostream &, int); - -template -struct ConvertToIntImpl { - enum { value = false }; -}; - -template -struct ConvertToIntImpl { - // Convert to int only if T doesn't have an overloaded operator<<. - enum { - value = sizeof(convert(get() << get())) == sizeof(No) - }; -}; - -template -struct ConvertToIntImpl2 { - enum { value = false }; -}; - -template -struct ConvertToIntImpl2 { - enum { - // Don't convert numeric types. - value = ConvertToIntImpl::is_specialized>::value - }; -}; - -template -struct ConvertToInt { - enum { enable_conversion = sizeof(convert(get())) == sizeof(Yes) }; - enum { value = ConvertToIntImpl2::value }; -}; - -#define FMT_DISABLE_CONVERSION_TO_INT(Type) \ - template <> \ - struct ConvertToInt { enum { value = 0 }; } - -// Silence warnings about convering float to int. -FMT_DISABLE_CONVERSION_TO_INT(float); -FMT_DISABLE_CONVERSION_TO_INT(double); -FMT_DISABLE_CONVERSION_TO_INT(long double); - -template -struct EnableIf {}; - -template -struct EnableIf { typedef T type; }; - -template -struct Conditional { typedef T type; }; - -template -struct Conditional { typedef F type; }; - -// For bcc32 which doesn't understand ! in template arguments. -template -struct Not { enum { value = 0 }; }; - -template<> -struct Not { enum { value = 1 }; }; - -// Makes an Arg object from any type. -template -class MakeValue : public Arg { - private: - // The following two methods are private to disallow formatting of - // arbitrary pointers. If you want to output a pointer cast it to - // "void *" or "const void *". In particular, this forbids formatting - // of "[const] volatile char *" which is printed as bool by iostreams. - // Do not implement! - template - MakeValue(const T *value); - template - MakeValue(T *value); - - // The following methods are private to disallow formatting of wide - // characters and strings into narrow strings as in - // fmt::format("{}", L"test"); - // To fix this, use a wide format string: fmt::format(L"{}", L"test"). -#if !defined(_MSC_VER) || defined(_NATIVE_WCHAR_T_DEFINED) - MakeValue(typename WCharHelper::Unsupported); -#endif - MakeValue(typename WCharHelper::Unsupported); - MakeValue(typename WCharHelper::Unsupported); - MakeValue(typename WCharHelper::Unsupported); - MakeValue(typename WCharHelper::Unsupported); - - void set_string(StringRef str) { - string.value = str.data(); - string.size = str.size(); - } - - void set_string(WStringRef str) { - wstring.value = str.data(); - wstring.size = str.size(); - } - - // Formats an argument of a custom type, such as a user-defined class. - template - static void format_custom_arg( - void *formatter, const void *arg, void *format_str_ptr) { - format(*static_cast*>(formatter), - *static_cast(format_str_ptr), - *static_cast(arg)); - } - - public: - MakeValue() {} - -#define FMT_MAKE_VALUE_(Type, field, TYPE, rhs) \ - MakeValue(Type value) { field = rhs; } \ - static uint64_t type(Type) { return Arg::TYPE; } - -#define FMT_MAKE_VALUE(Type, field, TYPE) \ - FMT_MAKE_VALUE_(Type, field, TYPE, value) - - FMT_MAKE_VALUE(bool, int_value, BOOL) - FMT_MAKE_VALUE(short, int_value, INT) - FMT_MAKE_VALUE(unsigned short, uint_value, UINT) - FMT_MAKE_VALUE(int, int_value, INT) - FMT_MAKE_VALUE(unsigned, uint_value, UINT) - - MakeValue(long value) { - // To minimize the number of types we need to deal with, long is - // translated either to int or to long long depending on its size. - if (check(sizeof(long) == sizeof(int))) - int_value = static_cast(value); - else - long_long_value = value; - } - static uint64_t type(long) { - return sizeof(long) == sizeof(int) ? Arg::INT : Arg::LONG_LONG; - } - - MakeValue(unsigned long value) { - if (check(sizeof(unsigned long) == sizeof(unsigned))) - uint_value = static_cast(value); - else - ulong_long_value = value; - } - static uint64_t type(unsigned long) { - return sizeof(unsigned long) == sizeof(unsigned) ? - Arg::UINT : Arg::ULONG_LONG; - } - - FMT_MAKE_VALUE(LongLong, long_long_value, LONG_LONG) - FMT_MAKE_VALUE(ULongLong, ulong_long_value, ULONG_LONG) - FMT_MAKE_VALUE(float, double_value, DOUBLE) - FMT_MAKE_VALUE(double, double_value, DOUBLE) - FMT_MAKE_VALUE(long double, long_double_value, LONG_DOUBLE) - FMT_MAKE_VALUE(signed char, int_value, INT) - FMT_MAKE_VALUE(unsigned char, uint_value, UINT) - FMT_MAKE_VALUE(char, int_value, CHAR) - -#if !defined(_MSC_VER) || defined(_NATIVE_WCHAR_T_DEFINED) - MakeValue(typename WCharHelper::Supported value) { - int_value = value; - } - static uint64_t type(wchar_t) { return Arg::CHAR; } -#endif - -#define FMT_MAKE_STR_VALUE(Type, TYPE) \ - MakeValue(Type value) { set_string(value); } \ - static uint64_t type(Type) { return Arg::TYPE; } - - FMT_MAKE_VALUE(char *, string.value, CSTRING) - FMT_MAKE_VALUE(const char *, string.value, CSTRING) - FMT_MAKE_VALUE(const signed char *, sstring.value, CSTRING) - FMT_MAKE_VALUE(const unsigned char *, ustring.value, CSTRING) - FMT_MAKE_STR_VALUE(const std::string &, STRING) - FMT_MAKE_STR_VALUE(StringRef, STRING) - FMT_MAKE_VALUE_(CStringRef, string.value, CSTRING, value.c_str()) - -#define FMT_MAKE_WSTR_VALUE(Type, TYPE) \ - MakeValue(typename WCharHelper::Supported value) { \ - set_string(value); \ - } \ - static uint64_t type(Type) { return Arg::TYPE; } - - FMT_MAKE_WSTR_VALUE(wchar_t *, WSTRING) - FMT_MAKE_WSTR_VALUE(const wchar_t *, WSTRING) - FMT_MAKE_WSTR_VALUE(const std::wstring &, WSTRING) - FMT_MAKE_WSTR_VALUE(WStringRef, WSTRING) - - FMT_MAKE_VALUE(void *, pointer, POINTER) - FMT_MAKE_VALUE(const void *, pointer, POINTER) - - template - MakeValue(const T &value, - typename EnableIf::value>::value, int>::type = 0) { - custom.value = &value; - custom.format = &format_custom_arg; - } - - template - MakeValue(const T &value, - typename EnableIf::value, int>::type = 0) { - int_value = value; - } - - template - static uint64_t type(const T &) { - return ConvertToInt::value ? Arg::INT : Arg::CUSTOM; - } - - // Additional template param `Char_` is needed here because make_type always - // uses MakeValue. - template - MakeValue(const NamedArg &value) { pointer = &value; } - - template - static uint64_t type(const NamedArg &) { return Arg::NAMED_ARG; } -}; - -template -struct NamedArg : Arg { - BasicStringRef name; - - template - NamedArg(BasicStringRef argname, const T &value) - : Arg(MakeValue(value)), name(argname) { - type = static_cast(MakeValue::type(value)); - } -}; - -#define FMT_DISPATCH(call) static_cast(this)->call - -// An argument visitor. -// To use ArgVisitor define a subclass that implements some or all of the -// visit methods with the same signatures as the methods in ArgVisitor, -// for example, visit_int(int). -// Specify the subclass name as the Impl template parameter. Then calling -// ArgVisitor::visit for some argument will dispatch to a visit method -// specific to the argument type. For example, if the argument type is -// double then visit_double(double) method of a subclass will be called. -// If the subclass doesn't contain a method with this signature, then -// a corresponding method of ArgVisitor will be called. -// -// Example: -// class MyArgVisitor : public ArgVisitor { -// public: -// void visit_int(int value) { print("{}", value); } -// void visit_double(double value) { print("{}", value ); } -// }; -// -// ArgVisitor uses the curiously recurring template pattern: -// http://en.wikipedia.org/wiki/Curiously_recurring_template_pattern -template -class ArgVisitor { - public: - void report_unhandled_arg() {} - - Result visit_unhandled_arg() { - FMT_DISPATCH(report_unhandled_arg()); - return Result(); - } - - Result visit_int(int value) { - return FMT_DISPATCH(visit_any_int(value)); - } - Result visit_long_long(LongLong value) { - return FMT_DISPATCH(visit_any_int(value)); - } - Result visit_uint(unsigned value) { - return FMT_DISPATCH(visit_any_int(value)); - } - Result visit_ulong_long(ULongLong value) { - return FMT_DISPATCH(visit_any_int(value)); - } - Result visit_bool(bool value) { - return FMT_DISPATCH(visit_any_int(value)); - } - Result visit_char(int value) { - return FMT_DISPATCH(visit_any_int(value)); - } - template - Result visit_any_int(T) { - return FMT_DISPATCH(visit_unhandled_arg()); - } - - Result visit_double(double value) { - return FMT_DISPATCH(visit_any_double(value)); - } - Result visit_long_double(long double value) { - return FMT_DISPATCH(visit_any_double(value)); - } - template - Result visit_any_double(T) { - return FMT_DISPATCH(visit_unhandled_arg()); - } - - Result visit_cstring(const char *) { - return FMT_DISPATCH(visit_unhandled_arg()); - } - Result visit_string(Arg::StringValue) { - return FMT_DISPATCH(visit_unhandled_arg()); - } - Result visit_wstring(Arg::StringValue) { - return FMT_DISPATCH(visit_unhandled_arg()); - } - Result visit_pointer(const void *) { - return FMT_DISPATCH(visit_unhandled_arg()); - } - Result visit_custom(Arg::CustomValue) { - return FMT_DISPATCH(visit_unhandled_arg()); - } - - Result visit(const Arg &arg) { - switch (arg.type) { - default: - FMT_ASSERT(false, "invalid argument type"); - return Result(); - case Arg::INT: - return FMT_DISPATCH(visit_int(arg.int_value)); - case Arg::UINT: - return FMT_DISPATCH(visit_uint(arg.uint_value)); - case Arg::LONG_LONG: - return FMT_DISPATCH(visit_long_long(arg.long_long_value)); - case Arg::ULONG_LONG: - return FMT_DISPATCH(visit_ulong_long(arg.ulong_long_value)); - case Arg::BOOL: - return FMT_DISPATCH(visit_bool(arg.int_value != 0)); - case Arg::CHAR: - return FMT_DISPATCH(visit_char(arg.int_value)); - case Arg::DOUBLE: - return FMT_DISPATCH(visit_double(arg.double_value)); - case Arg::LONG_DOUBLE: - return FMT_DISPATCH(visit_long_double(arg.long_double_value)); - case Arg::CSTRING: - return FMT_DISPATCH(visit_cstring(arg.string.value)); - case Arg::STRING: - return FMT_DISPATCH(visit_string(arg.string)); - case Arg::WSTRING: - return FMT_DISPATCH(visit_wstring(arg.wstring)); - case Arg::POINTER: - return FMT_DISPATCH(visit_pointer(arg.pointer)); - case Arg::CUSTOM: - return FMT_DISPATCH(visit_custom(arg.custom)); - } - } -}; - -class RuntimeError : public std::runtime_error { - protected: - RuntimeError() : std::runtime_error("") {} -}; - -template -class BasicArgFormatter; - -template -class PrintfArgFormatter; - -template -class ArgMap; -} // namespace internal - -/** An argument list. */ -class ArgList { - private: - // To reduce compiled code size per formatting function call, types of first - // MAX_PACKED_ARGS arguments are passed in the types_ field. - uint64_t types_; - union { - // If the number of arguments is less than MAX_PACKED_ARGS, the argument - // values are stored in values_, otherwise they are stored in args_. - // This is done to reduce compiled code size as storing larger objects - // may require more code (at least on x86-64) even if the same amount of - // data is actually copied to stack. It saves ~10% on the bloat test. - const internal::Value *values_; - const internal::Arg *args_; - }; - - internal::Arg::Type type(unsigned index) const { - unsigned shift = index * 4; - uint64_t mask = 0xf; - return static_cast( - (types_ & (mask << shift)) >> shift); - } - - template - friend class internal::ArgMap; - - public: - // Maximum number of arguments with packed types. - enum { MAX_PACKED_ARGS = 16 }; - - ArgList() : types_(0) {} - - ArgList(ULongLong types, const internal::Value *values) - : types_(types), values_(values) {} - ArgList(ULongLong types, const internal::Arg *args) - : types_(types), args_(args) {} - - /** Returns the argument at specified index. */ - internal::Arg operator[](unsigned index) const { - using internal::Arg; - Arg arg; - bool use_values = type(MAX_PACKED_ARGS - 1) == Arg::NONE; - if (index < MAX_PACKED_ARGS) { - Arg::Type arg_type = type(index); - internal::Value &val = arg; - if (arg_type != Arg::NONE) - val = use_values ? values_[index] : args_[index]; - arg.type = arg_type; - return arg; - } - if (use_values) { - // The index is greater than the number of arguments that can be stored - // in values, so return a "none" argument. - arg.type = Arg::NONE; - return arg; - } - for (unsigned i = MAX_PACKED_ARGS; i <= index; ++i) { - if (args_[i].type == Arg::NONE) - return args_[i]; - } - return args_[index]; - } -}; - -struct FormatSpec; - -namespace internal { - -template -class ArgMap { - private: - typedef std::map, internal::Arg> MapType; - typedef typename MapType::value_type Pair; - - MapType map_; - - public: - void init(const ArgList &args); - - const internal::Arg* find(const fmt::BasicStringRef &name) const { - typename MapType::const_iterator it = map_.find(name); - return it != map_.end() ? &it->second : 0; - } -}; - -class FormatterBase { - private: - ArgList args_; - int next_arg_index_; - - // Returns the argument with specified index. - Arg do_get_arg(unsigned arg_index, const char *&error); - - protected: - const ArgList &args() const { return args_; } - - explicit FormatterBase(const ArgList &args) { - args_ = args; - next_arg_index_ = 0; - } - - // Returns the next argument. - Arg next_arg(const char *&error); - - // Checks if manual indexing is used and returns the argument with - // specified index. - Arg get_arg(unsigned arg_index, const char *&error); - - bool check_no_auto_index(const char *&error); - - template - void write(BasicWriter &w, const Char *start, const Char *end) { - if (start != end) - w << BasicStringRef(start, end - start); - } -}; - -// A printf formatter. -template -class PrintfFormatter : private FormatterBase { - private: - void parse_flags(FormatSpec &spec, const Char *&s); - - // Returns the argument with specified index or, if arg_index is equal - // to the maximum unsigned value, the next argument. - Arg get_arg(const Char *s, - unsigned arg_index = (std::numeric_limits::max)()); - - // Parses argument index, flags and width and returns the argument index. - unsigned parse_header(const Char *&s, FormatSpec &spec); - - public: - explicit PrintfFormatter(const ArgList &args) : FormatterBase(args) {} - void format(BasicWriter &writer, BasicCStringRef format_str); -}; -} // namespace internal - -// A formatter. -template -class BasicFormatter : private internal::FormatterBase { - private: - BasicWriter &writer_; - internal::ArgMap map_; - - FMT_DISALLOW_COPY_AND_ASSIGN(BasicFormatter); - - using internal::FormatterBase::get_arg; - - // Checks if manual indexing is used and returns the argument with - // specified name. - internal::Arg get_arg(BasicStringRef arg_name, const char *&error); - - // Parses argument index and returns corresponding argument. - internal::Arg parse_arg_index(const Char *&s); - - // Parses argument name and returns corresponding argument. - internal::Arg parse_arg_name(const Char *&s); - - public: - BasicFormatter(const ArgList &args, BasicWriter &w) - : internal::FormatterBase(args), writer_(w) {} - - BasicWriter &writer() { return writer_; } - - void format(BasicCStringRef format_str); - - const Char *format(const Char *&format_str, const internal::Arg &arg); -}; - -enum Alignment { - ALIGN_DEFAULT, ALIGN_LEFT, ALIGN_RIGHT, ALIGN_CENTER, ALIGN_NUMERIC -}; - -// Flags. -enum { - SIGN_FLAG = 1, PLUS_FLAG = 2, MINUS_FLAG = 4, HASH_FLAG = 8, - CHAR_FLAG = 0x10 // Argument has char type - used in error reporting. -}; - -// An empty format specifier. -struct EmptySpec {}; - -// A type specifier. -template -struct TypeSpec : EmptySpec { - Alignment align() const { return ALIGN_DEFAULT; } - unsigned width() const { return 0; } - int precision() const { return -1; } - bool flag(unsigned) const { return false; } - char type() const { return TYPE; } - char fill() const { return ' '; } -}; - -// A width specifier. -struct WidthSpec { - unsigned width_; - // Fill is always wchar_t and cast to char if necessary to avoid having - // two specialization of WidthSpec and its subclasses. - wchar_t fill_; - - WidthSpec(unsigned width, wchar_t fill) : width_(width), fill_(fill) {} - - unsigned width() const { return width_; } - wchar_t fill() const { return fill_; } -}; - -// An alignment specifier. -struct AlignSpec : WidthSpec { - Alignment align_; - - AlignSpec(unsigned width, wchar_t fill, Alignment align = ALIGN_DEFAULT) - : WidthSpec(width, fill), align_(align) {} - - Alignment align() const { return align_; } - - int precision() const { return -1; } -}; - -// An alignment and type specifier. -template -struct AlignTypeSpec : AlignSpec { - AlignTypeSpec(unsigned width, wchar_t fill) : AlignSpec(width, fill) {} - - bool flag(unsigned) const { return false; } - char type() const { return TYPE; } -}; - -// A full format specifier. -struct FormatSpec : AlignSpec { - unsigned flags_; - int precision_; - char type_; - - FormatSpec( - unsigned width = 0, char type = 0, wchar_t fill = ' ') - : AlignSpec(width, fill), flags_(0), precision_(-1), type_(type) {} - - bool flag(unsigned f) const { return (flags_ & f) != 0; } - int precision() const { return precision_; } - char type() const { return type_; } -}; - -// An integer format specifier. -template , typename Char = char> -class IntFormatSpec : public SpecT { - private: - T value_; - - public: - IntFormatSpec(T val, const SpecT &spec = SpecT()) - : SpecT(spec), value_(val) {} - - T value() const { return value_; } -}; - -// A string format specifier. -template -class StrFormatSpec : public AlignSpec { - private: - const Char *str_; - - public: - template - StrFormatSpec(const Char *str, unsigned width, FillChar fill) - : AlignSpec(width, fill), str_(str) { - internal::CharTraits::convert(FillChar()); - } - - const Char *str() const { return str_; } -}; - -/** - Returns an integer format specifier to format the value in base 2. - */ -IntFormatSpec > bin(int value); - -/** - Returns an integer format specifier to format the value in base 8. - */ -IntFormatSpec > oct(int value); - -/** - Returns an integer format specifier to format the value in base 16 using - lower-case letters for the digits above 9. - */ -IntFormatSpec > hex(int value); - -/** - Returns an integer formatter format specifier to format in base 16 using - upper-case letters for the digits above 9. - */ -IntFormatSpec > hexu(int value); - -/** - \rst - Returns an integer format specifier to pad the formatted argument with the - fill character to the specified width using the default (right) numeric - alignment. - - **Example**:: - - MemoryWriter out; - out << pad(hex(0xcafe), 8, '0'); - // out.str() == "0000cafe" - - \endrst - */ -template -IntFormatSpec, Char> pad( - int value, unsigned width, Char fill = ' '); - -#define FMT_DEFINE_INT_FORMATTERS(TYPE) \ -inline IntFormatSpec > bin(TYPE value) { \ - return IntFormatSpec >(value, TypeSpec<'b'>()); \ -} \ - \ -inline IntFormatSpec > oct(TYPE value) { \ - return IntFormatSpec >(value, TypeSpec<'o'>()); \ -} \ - \ -inline IntFormatSpec > hex(TYPE value) { \ - return IntFormatSpec >(value, TypeSpec<'x'>()); \ -} \ - \ -inline IntFormatSpec > hexu(TYPE value) { \ - return IntFormatSpec >(value, TypeSpec<'X'>()); \ -} \ - \ -template \ -inline IntFormatSpec > pad( \ - IntFormatSpec > f, unsigned width) { \ - return IntFormatSpec >( \ - f.value(), AlignTypeSpec(width, ' ')); \ -} \ - \ -/* For compatibility with older compilers we provide two overloads for pad, */ \ -/* one that takes a fill character and one that doesn't. In the future this */ \ -/* can be replaced with one overload making the template argument Char */ \ -/* default to char (C++11). */ \ -template \ -inline IntFormatSpec, Char> pad( \ - IntFormatSpec, Char> f, \ - unsigned width, Char fill) { \ - return IntFormatSpec, Char>( \ - f.value(), AlignTypeSpec(width, fill)); \ -} \ - \ -inline IntFormatSpec > pad( \ - TYPE value, unsigned width) { \ - return IntFormatSpec >( \ - value, AlignTypeSpec<0>(width, ' ')); \ -} \ - \ -template \ -inline IntFormatSpec, Char> pad( \ - TYPE value, unsigned width, Char fill) { \ - return IntFormatSpec, Char>( \ - value, AlignTypeSpec<0>(width, fill)); \ -} - -FMT_DEFINE_INT_FORMATTERS(int) -FMT_DEFINE_INT_FORMATTERS(long) -FMT_DEFINE_INT_FORMATTERS(unsigned) -FMT_DEFINE_INT_FORMATTERS(unsigned long) -FMT_DEFINE_INT_FORMATTERS(LongLong) -FMT_DEFINE_INT_FORMATTERS(ULongLong) - -/** - \rst - Returns a string formatter that pads the formatted argument with the fill - character to the specified width using the default (left) string alignment. - - **Example**:: - - std::string s = str(MemoryWriter() << pad("abc", 8)); - // s == "abc " - - \endrst - */ -template -inline StrFormatSpec pad( - const Char *str, unsigned width, Char fill = ' ') { - return StrFormatSpec(str, width, fill); -} - -inline StrFormatSpec pad( - const wchar_t *str, unsigned width, char fill = ' ') { - return StrFormatSpec(str, width, fill); -} - -// Generates a comma-separated list with results of applying f to -// numbers 0..n-1. -# define FMT_GEN(n, f) FMT_GEN##n(f) -# define FMT_GEN1(f) f(0) -# define FMT_GEN2(f) FMT_GEN1(f), f(1) -# define FMT_GEN3(f) FMT_GEN2(f), f(2) -# define FMT_GEN4(f) FMT_GEN3(f), f(3) -# define FMT_GEN5(f) FMT_GEN4(f), f(4) -# define FMT_GEN6(f) FMT_GEN5(f), f(5) -# define FMT_GEN7(f) FMT_GEN6(f), f(6) -# define FMT_GEN8(f) FMT_GEN7(f), f(7) -# define FMT_GEN9(f) FMT_GEN8(f), f(8) -# define FMT_GEN10(f) FMT_GEN9(f), f(9) -# define FMT_GEN11(f) FMT_GEN10(f), f(10) -# define FMT_GEN12(f) FMT_GEN11(f), f(11) -# define FMT_GEN13(f) FMT_GEN12(f), f(12) -# define FMT_GEN14(f) FMT_GEN13(f), f(13) -# define FMT_GEN15(f) FMT_GEN14(f), f(14) - -namespace internal { -inline uint64_t make_type() { return 0; } - -template -inline uint64_t make_type(const T &arg) { return MakeValue::type(arg); } - -template -struct ArgArray { - // Computes the argument array size by adding 1 to N, which is the number of - // arguments, if N is zero, because array of zero size is invalid, or if N - // is greater than ArgList::MAX_PACKED_ARGS to accommodate for an extra - // argument that marks the end of the list. - enum { SIZE = N + (N == 0 || N >= ArgList::MAX_PACKED_ARGS ? 1 : 0) }; - - typedef typename Conditional< - (N < ArgList::MAX_PACKED_ARGS), Value, Arg>::type Type[SIZE]; -}; - -#if FMT_USE_VARIADIC_TEMPLATES -template -inline uint64_t make_type(const Arg &first, const Args & ... tail) { - return make_type(first) | (make_type(tail...) << 4); -} - -inline void do_set_types(Arg *) {} - -template -inline void do_set_types(Arg *args, const T &arg, const Args & ... tail) { - args->type = static_cast(MakeValue::type(arg)); - do_set_types(args + 1, tail...); -} - -template -inline void set_types(Arg *array, const Args & ... args) { - if (check(sizeof...(Args) > ArgList::MAX_PACKED_ARGS)) - do_set_types(array, args...); - array[sizeof...(Args)].type = Arg::NONE; -} - -template -inline void set_types(Value *, const Args & ...) { - // Do nothing as types are passed separately from values. -} - -template -inline void store_args(Value *) {} - -template -inline void store_args(Arg *args, const T &arg, const Args & ... tail) { - // Assign only the Value subobject of Arg and don't overwrite type (if any) - // that is assigned by set_types. - Value &value = *args; - value = MakeValue(arg); - store_args(args + 1, tail...); -} - -template -ArgList make_arg_list(typename ArgArray::Type array, - const Args & ... args) { - if (check(sizeof...(Args) >= ArgList::MAX_PACKED_ARGS)) - set_types(array, args...); - store_args(array, args...); - return ArgList(make_type(args...), array); -} -#else - -struct ArgType { - uint64_t type; - - ArgType() : type(0) {} - - template - ArgType(const T &arg) : type(make_type(arg)) {} -}; - -# define FMT_ARG_TYPE_DEFAULT(n) ArgType t##n = ArgType() - -inline uint64_t make_type(FMT_GEN15(FMT_ARG_TYPE_DEFAULT)) { - return t0.type | (t1.type << 4) | (t2.type << 8) | (t3.type << 12) | - (t4.type << 16) | (t5.type << 20) | (t6.type << 24) | (t7.type << 28) | - (t8.type << 32) | (t9.type << 36) | (t10.type << 40) | (t11.type << 44) | - (t12.type << 48) | (t13.type << 52) | (t14.type << 56); -} -#endif - -template -class FormatBuf : public std::basic_streambuf { - private: - typedef typename std::basic_streambuf::int_type int_type; - typedef typename std::basic_streambuf::traits_type traits_type; - - Buffer &buffer_; - Char *start_; - - public: - FormatBuf(Buffer &buffer) : buffer_(buffer), start_(&buffer[0]) { - this->setp(start_, start_ + buffer_.capacity()); - } - - int_type overflow(int_type ch = traits_type::eof()) { - if (!traits_type::eq_int_type(ch, traits_type::eof())) { - size_t size = this->pptr() - start_; - buffer_.resize(size); - buffer_.reserve(size * 2); - - start_ = &buffer_[0]; - start_[size] = traits_type::to_char_type(ch); - this->setp(start_+ size + 1, start_ + size * 2); - } - return ch; - } - - size_t size() const { - return this->pptr() - start_; - } -}; -} // namespace internal - -# define FMT_MAKE_TEMPLATE_ARG(n) typename T##n -# define FMT_MAKE_ARG_TYPE(n) T##n -# define FMT_MAKE_ARG(n) const T##n &v##n -# define FMT_ASSIGN_char(n) arr[n] = fmt::internal::MakeValue(v##n) -# define FMT_ASSIGN_wchar_t(n) arr[n] = fmt::internal::MakeValue(v##n) - -#if FMT_USE_VARIADIC_TEMPLATES -// Defines a variadic function returning void. -# define FMT_VARIADIC_VOID(func, arg_type) \ - template \ - void func(arg_type arg0, const Args & ... args) { \ - typename fmt::internal::ArgArray::Type array; \ - func(arg0, fmt::internal::make_arg_list(array, args...)); \ - } - -// Defines a variadic constructor. -# define FMT_VARIADIC_CTOR(ctor, func, arg0_type, arg1_type) \ - template \ - ctor(arg0_type arg0, arg1_type arg1, const Args & ... args) { \ - typename fmt::internal::ArgArray::Type array; \ - func(arg0, arg1, fmt::internal::make_arg_list(array, args...)); \ - } - -#else - -# define FMT_MAKE_REF(n) fmt::internal::MakeValue(v##n) -# define FMT_MAKE_REF2(n) v##n - -// Defines a wrapper for a function taking one argument of type arg_type -// and n additional arguments of arbitrary types. -# define FMT_WRAP1(func, arg_type, n) \ - template \ - inline void func(arg_type arg1, FMT_GEN(n, FMT_MAKE_ARG)) { \ - const fmt::internal::ArgArray::Type array = {FMT_GEN(n, FMT_MAKE_REF)}; \ - func(arg1, fmt::ArgList( \ - fmt::internal::make_type(FMT_GEN(n, FMT_MAKE_REF2)), array)); \ - } - -// Emulates a variadic function returning void on a pre-C++11 compiler. -# define FMT_VARIADIC_VOID(func, arg_type) \ - inline void func(arg_type arg) { func(arg, fmt::ArgList()); } \ - FMT_WRAP1(func, arg_type, 1) FMT_WRAP1(func, arg_type, 2) \ - FMT_WRAP1(func, arg_type, 3) FMT_WRAP1(func, arg_type, 4) \ - FMT_WRAP1(func, arg_type, 5) FMT_WRAP1(func, arg_type, 6) \ - FMT_WRAP1(func, arg_type, 7) FMT_WRAP1(func, arg_type, 8) \ - FMT_WRAP1(func, arg_type, 9) FMT_WRAP1(func, arg_type, 10) - -# define FMT_CTOR(ctor, func, arg0_type, arg1_type, n) \ - template \ - ctor(arg0_type arg0, arg1_type arg1, FMT_GEN(n, FMT_MAKE_ARG)) { \ - const fmt::internal::ArgArray::Type array = {FMT_GEN(n, FMT_MAKE_REF)}; \ - func(arg0, arg1, fmt::ArgList( \ - fmt::internal::make_type(FMT_GEN(n, FMT_MAKE_REF2)), array)); \ - } - -// Emulates a variadic constructor on a pre-C++11 compiler. -# define FMT_VARIADIC_CTOR(ctor, func, arg0_type, arg1_type) \ - FMT_CTOR(ctor, func, arg0_type, arg1_type, 1) \ - FMT_CTOR(ctor, func, arg0_type, arg1_type, 2) \ - FMT_CTOR(ctor, func, arg0_type, arg1_type, 3) \ - FMT_CTOR(ctor, func, arg0_type, arg1_type, 4) \ - FMT_CTOR(ctor, func, arg0_type, arg1_type, 5) \ - FMT_CTOR(ctor, func, arg0_type, arg1_type, 6) \ - FMT_CTOR(ctor, func, arg0_type, arg1_type, 7) \ - FMT_CTOR(ctor, func, arg0_type, arg1_type, 8) \ - FMT_CTOR(ctor, func, arg0_type, arg1_type, 9) \ - FMT_CTOR(ctor, func, arg0_type, arg1_type, 10) -#endif - -// Generates a comma-separated list with results of applying f to pairs -// (argument, index). -#define FMT_FOR_EACH1(f, x0) f(x0, 0) -#define FMT_FOR_EACH2(f, x0, x1) \ - FMT_FOR_EACH1(f, x0), f(x1, 1) -#define FMT_FOR_EACH3(f, x0, x1, x2) \ - FMT_FOR_EACH2(f, x0 ,x1), f(x2, 2) -#define FMT_FOR_EACH4(f, x0, x1, x2, x3) \ - FMT_FOR_EACH3(f, x0, x1, x2), f(x3, 3) -#define FMT_FOR_EACH5(f, x0, x1, x2, x3, x4) \ - FMT_FOR_EACH4(f, x0, x1, x2, x3), f(x4, 4) -#define FMT_FOR_EACH6(f, x0, x1, x2, x3, x4, x5) \ - FMT_FOR_EACH5(f, x0, x1, x2, x3, x4), f(x5, 5) -#define FMT_FOR_EACH7(f, x0, x1, x2, x3, x4, x5, x6) \ - FMT_FOR_EACH6(f, x0, x1, x2, x3, x4, x5), f(x6, 6) -#define FMT_FOR_EACH8(f, x0, x1, x2, x3, x4, x5, x6, x7) \ - FMT_FOR_EACH7(f, x0, x1, x2, x3, x4, x5, x6), f(x7, 7) -#define FMT_FOR_EACH9(f, x0, x1, x2, x3, x4, x5, x6, x7, x8) \ - FMT_FOR_EACH8(f, x0, x1, x2, x3, x4, x5, x6, x7), f(x8, 8) -#define FMT_FOR_EACH10(f, x0, x1, x2, x3, x4, x5, x6, x7, x8, x9) \ - FMT_FOR_EACH9(f, x0, x1, x2, x3, x4, x5, x6, x7, x8), f(x9, 9) - -/** - An error returned by an operating system or a language runtime, - for example a file opening error. -*/ -class SystemError : public internal::RuntimeError { - private: - void init(int err_code, CStringRef format_str, ArgList args); - - protected: - int error_code_; - - typedef char Char; // For FMT_VARIADIC_CTOR. - - SystemError() {} - - public: - /** - \rst - Constructs a :class:`fmt::SystemError` object with the description - of the form - - .. parsed-literal:: - **: ** - - where ** is the formatted message and ** is - the system message corresponding to the error code. - *error_code* is a system error code as given by ``errno``. - If *error_code* is not a valid error code such as -1, the system message - may look like "Unknown error -1" and is platform-dependent. - - **Example**:: - - // This throws a SystemError with the description - // cannot open file 'madeup': No such file or directory - // or similar (system message may vary). - const char *filename = "madeup"; - std::FILE *file = std::fopen(filename, "r"); - if (!file) - throw fmt::SystemError(errno, "cannot open file '{}'", filename); - \endrst - */ - SystemError(int error_code, CStringRef message) { - init(error_code, message, ArgList()); - } - FMT_VARIADIC_CTOR(SystemError, init, int, CStringRef) - - int error_code() const { return error_code_; } -}; - -/** - \rst - This template provides operations for formatting and writing data into - a character stream. The output is stored in a buffer provided by a subclass - such as :class:`fmt::BasicMemoryWriter`. - - You can use one of the following typedefs for common character types: - - +---------+----------------------+ - | Type | Definition | - +=========+======================+ - | Writer | BasicWriter | - +---------+----------------------+ - | WWriter | BasicWriter | - +---------+----------------------+ - - \endrst - */ -template -class BasicWriter { - private: - // Output buffer. - Buffer &buffer_; - - FMT_DISALLOW_COPY_AND_ASSIGN(BasicWriter); - - typedef typename internal::CharTraits::CharPtr CharPtr; - -#if FMT_SECURE_SCL - // Returns pointer value. - static Char *get(CharPtr p) { return p.base(); } -#else - static Char *get(Char *p) { return p; } -#endif - - // Fills the padding around the content and returns the pointer to the - // content area. - static CharPtr fill_padding(CharPtr buffer, - unsigned total_size, std::size_t content_size, wchar_t fill); - - // Grows the buffer by n characters and returns a pointer to the newly - // allocated area. - CharPtr grow_buffer(std::size_t n) { - std::size_t size = buffer_.size(); - buffer_.resize(size + n); - return internal::make_ptr(&buffer_[size], n); - } - - // Writes an unsigned decimal integer. - template - Char *write_unsigned_decimal(UInt value, unsigned prefix_size = 0) { - unsigned num_digits = internal::count_digits(value); - Char *ptr = get(grow_buffer(prefix_size + num_digits)); - internal::format_decimal(ptr + prefix_size, value, num_digits); - return ptr; - } - - // Writes a decimal integer. - template - void write_decimal(Int value) { - typename internal::IntTraits::MainType abs_value = value; - if (internal::is_negative(value)) { - abs_value = 0 - abs_value; - *write_unsigned_decimal(abs_value, 1) = '-'; - } else { - write_unsigned_decimal(abs_value, 0); - } - } - - // Prepare a buffer for integer formatting. - CharPtr prepare_int_buffer(unsigned num_digits, - const EmptySpec &, const char *prefix, unsigned prefix_size) { - unsigned size = prefix_size + num_digits; - CharPtr p = grow_buffer(size); - std::copy(prefix, prefix + prefix_size, p); - return p + size - 1; - } - - template - CharPtr prepare_int_buffer(unsigned num_digits, - const Spec &spec, const char *prefix, unsigned prefix_size); - - // Formats an integer. - template - void write_int(T value, Spec spec); - - // Formats a floating-point number (double or long double). - template - void write_double(T value, const FormatSpec &spec); - - // Writes a formatted string. - template - CharPtr write_str( - const StrChar *s, std::size_t size, const AlignSpec &spec); - - template - void write_str( - const internal::Arg::StringValue &str, const FormatSpec &spec); - - // This following methods are private to disallow writing wide characters - // and strings to a char stream. If you want to print a wide string as a - // pointer as std::ostream does, cast it to const void*. - // Do not implement! - void operator<<(typename internal::WCharHelper::Unsupported); - void operator<<( - typename internal::WCharHelper::Unsupported); - - // Appends floating-point length specifier to the format string. - // The second argument is only used for overload resolution. - void append_float_length(Char *&format_ptr, long double) { - *format_ptr++ = 'L'; - } - - template - void append_float_length(Char *&, T) {} - - template - friend class internal::BasicArgFormatter; - - friend class internal::PrintfArgFormatter; - - protected: - /** - Constructs a ``BasicWriter`` object. - */ - explicit BasicWriter(Buffer &b) : buffer_(b) {} - - public: - /** - \rst - Destroys a ``BasicWriter`` object. - \endrst - */ - virtual ~BasicWriter() {} - - /** - Returns the total number of characters written. - */ - std::size_t size() const { return buffer_.size(); } - - /** - Returns a pointer to the output buffer content. No terminating null - character is appended. - */ - const Char *data() const FMT_NOEXCEPT { return &buffer_[0]; } - - /** - Returns a pointer to the output buffer content with terminating null - character appended. - */ - const Char *c_str() const { - std::size_t size = buffer_.size(); - buffer_.reserve(size + 1); - buffer_[size] = '\0'; - return &buffer_[0]; - } - - /** - \rst - Returns the content of the output buffer as an `std::string`. - \endrst - */ - std::basic_string str() const { - return std::basic_string(&buffer_[0], buffer_.size()); - } - - /** - \rst - Writes formatted data. - - *args* is an argument list representing arbitrary arguments. - - **Example**:: - - MemoryWriter out; - out.write("Current point:\n"); - out.write("({:+f}, {:+f})", -3.14, 3.14); - - This will write the following output to the ``out`` object: - - .. code-block:: none - - Current point: - (-3.140000, +3.140000) - - The output can be accessed using :func:`data()`, :func:`c_str` or - :func:`str` methods. - - See also :ref:`syntax`. - \endrst - */ - void write(BasicCStringRef format, ArgList args) { - BasicFormatter(args, *this).format(format); - } - FMT_VARIADIC_VOID(write, BasicCStringRef) - - BasicWriter &operator<<(int value) { - write_decimal(value); - return *this; - } - BasicWriter &operator<<(unsigned value) { - return *this << IntFormatSpec(value); - } - BasicWriter &operator<<(long value) { - write_decimal(value); - return *this; - } - BasicWriter &operator<<(unsigned long value) { - return *this << IntFormatSpec(value); - } - BasicWriter &operator<<(LongLong value) { - write_decimal(value); - return *this; - } - - /** - \rst - Formats *value* and writes it to the stream. - \endrst - */ - BasicWriter &operator<<(ULongLong value) { - return *this << IntFormatSpec(value); - } - - BasicWriter &operator<<(double value) { - write_double(value, FormatSpec()); - return *this; - } - - /** - \rst - Formats *value* using the general format for floating-point numbers - (``'g'``) and writes it to the stream. - \endrst - */ - BasicWriter &operator<<(long double value) { - write_double(value, FormatSpec()); - return *this; - } - - /** - Writes a character to the stream. - */ - BasicWriter &operator<<(char value) { - buffer_.push_back(value); - return *this; - } - - BasicWriter &operator<<( - typename internal::WCharHelper::Supported value) { - buffer_.push_back(value); - return *this; - } - - /** - \rst - Writes *value* to the stream. - \endrst - */ - BasicWriter &operator<<(fmt::BasicStringRef value) { - const Char *str = value.data(); - buffer_.append(str, str + value.size()); - return *this; - } - - BasicWriter &operator<<( - typename internal::WCharHelper::Supported value) { - const char *str = value.data(); - buffer_.append(str, str + value.size()); - return *this; - } - - template - BasicWriter &operator<<(IntFormatSpec spec) { - internal::CharTraits::convert(FillChar()); - write_int(spec.value(), spec); - return *this; - } - - template - BasicWriter &operator<<(const StrFormatSpec &spec) { - const StrChar *s = spec.str(); - write_str(s, std::char_traits::length(s), spec); - return *this; - } - - void clear() FMT_NOEXCEPT { buffer_.clear(); } -}; - -template -template -typename BasicWriter::CharPtr BasicWriter::write_str( - const StrChar *s, std::size_t size, const AlignSpec &spec) { - CharPtr out = CharPtr(); - if (spec.width() > size) { - out = grow_buffer(spec.width()); - Char fill = internal::CharTraits::cast(spec.fill()); - if (spec.align() == ALIGN_RIGHT) { - std::fill_n(out, spec.width() - size, fill); - out += spec.width() - size; - } else if (spec.align() == ALIGN_CENTER) { - out = fill_padding(out, spec.width(), size, fill); - } else { - std::fill_n(out + size, spec.width() - size, fill); - } - } else { - out = grow_buffer(size); - } - std::copy(s, s + size, out); - return out; -} - -template -typename BasicWriter::CharPtr - BasicWriter::fill_padding( - CharPtr buffer, unsigned total_size, - std::size_t content_size, wchar_t fill) { - std::size_t padding = total_size - content_size; - std::size_t left_padding = padding / 2; - Char fill_char = internal::CharTraits::cast(fill); - std::fill_n(buffer, left_padding, fill_char); - buffer += left_padding; - CharPtr content = buffer; - std::fill_n(buffer + content_size, padding - left_padding, fill_char); - return content; -} - -template -template -typename BasicWriter::CharPtr - BasicWriter::prepare_int_buffer( - unsigned num_digits, const Spec &spec, - const char *prefix, unsigned prefix_size) { - unsigned width = spec.width(); - Alignment align = spec.align(); - Char fill = internal::CharTraits::cast(spec.fill()); - if (spec.precision() > static_cast(num_digits)) { - // Octal prefix '0' is counted as a digit, so ignore it if precision - // is specified. - if (prefix_size > 0 && prefix[prefix_size - 1] == '0') - --prefix_size; - unsigned number_size = prefix_size + spec.precision(); - AlignSpec subspec(number_size, '0', ALIGN_NUMERIC); - if (number_size >= width) - return prepare_int_buffer(num_digits, subspec, prefix, prefix_size); - buffer_.reserve(width); - unsigned fill_size = width - number_size; - if (align != ALIGN_LEFT) { - CharPtr p = grow_buffer(fill_size); - std::fill(p, p + fill_size, fill); - } - CharPtr result = prepare_int_buffer( - num_digits, subspec, prefix, prefix_size); - if (align == ALIGN_LEFT) { - CharPtr p = grow_buffer(fill_size); - std::fill(p, p + fill_size, fill); - } - return result; - } - unsigned size = prefix_size + num_digits; - if (width <= size) { - CharPtr p = grow_buffer(size); - std::copy(prefix, prefix + prefix_size, p); - return p + size - 1; - } - CharPtr p = grow_buffer(width); - CharPtr end = p + width; - if (align == ALIGN_LEFT) { - std::copy(prefix, prefix + prefix_size, p); - p += size; - std::fill(p, end, fill); - } else if (align == ALIGN_CENTER) { - p = fill_padding(p, width, size, fill); - std::copy(prefix, prefix + prefix_size, p); - p += size; - } else { - if (align == ALIGN_NUMERIC) { - if (prefix_size != 0) { - p = std::copy(prefix, prefix + prefix_size, p); - size -= prefix_size; - } - } else { - std::copy(prefix, prefix + prefix_size, end - size); - } - std::fill(p, end - size, fill); - p = end; - } - return p - 1; -} - -template -template -void BasicWriter::write_int(T value, Spec spec) { - unsigned prefix_size = 0; - typedef typename internal::IntTraits::MainType UnsignedType; - UnsignedType abs_value = value; - char prefix[4] = ""; - if (internal::is_negative(value)) { - prefix[0] = '-'; - ++prefix_size; - abs_value = 0 - abs_value; - } else if (spec.flag(SIGN_FLAG)) { - prefix[0] = spec.flag(PLUS_FLAG) ? '+' : ' '; - ++prefix_size; - } - switch (spec.type()) { - case 0: case 'd': { - unsigned num_digits = internal::count_digits(abs_value); - CharPtr p = prepare_int_buffer( - num_digits, spec, prefix, prefix_size) + 1 - num_digits; - internal::format_decimal(get(p), abs_value, num_digits); - break; - } - case 'x': case 'X': { - UnsignedType n = abs_value; - if (spec.flag(HASH_FLAG)) { - prefix[prefix_size++] = '0'; - prefix[prefix_size++] = spec.type(); - } - unsigned num_digits = 0; - do { - ++num_digits; - } while ((n >>= 4) != 0); - Char *p = get(prepare_int_buffer( - num_digits, spec, prefix, prefix_size)); - n = abs_value; - const char *digits = spec.type() == 'x' ? - "0123456789abcdef" : "0123456789ABCDEF"; - do { - *p-- = digits[n & 0xf]; - } while ((n >>= 4) != 0); - break; - } - case 'b': case 'B': { - UnsignedType n = abs_value; - if (spec.flag(HASH_FLAG)) { - prefix[prefix_size++] = '0'; - prefix[prefix_size++] = spec.type(); - } - unsigned num_digits = 0; - do { - ++num_digits; - } while ((n >>= 1) != 0); - Char *p = get(prepare_int_buffer(num_digits, spec, prefix, prefix_size)); - n = abs_value; - do { - *p-- = static_cast('0' + (n & 1)); - } while ((n >>= 1) != 0); - break; - } - case 'o': { - UnsignedType n = abs_value; - if (spec.flag(HASH_FLAG)) - prefix[prefix_size++] = '0'; - unsigned num_digits = 0; - do { - ++num_digits; - } while ((n >>= 3) != 0); - Char *p = get(prepare_int_buffer(num_digits, spec, prefix, prefix_size)); - n = abs_value; - do { - *p-- = static_cast('0' + (n & 7)); - } while ((n >>= 3) != 0); - break; - } - default: - internal::report_unknown_type( - spec.type(), spec.flag(CHAR_FLAG) ? "char" : "integer"); - break; - } -} - -template -template -void BasicWriter::write_double( - T value, const FormatSpec &spec) { - // Check type. - char type = spec.type(); - bool upper = false; - switch (type) { - case 0: - type = 'g'; - break; - case 'e': case 'f': case 'g': case 'a': - break; - case 'F': -#ifdef _MSC_VER - // MSVC's printf doesn't support 'F'. - type = 'f'; -#endif - // Fall through. - case 'E': case 'G': case 'A': - upper = true; - break; - default: - internal::report_unknown_type(type, "double"); - break; - } - - char sign = 0; - // Use isnegative instead of value < 0 because the latter is always - // false for NaN. - if (internal::FPUtil::isnegative(static_cast(value))) { - sign = '-'; - value = -value; - } else if (spec.flag(SIGN_FLAG)) { - sign = spec.flag(PLUS_FLAG) ? '+' : ' '; - } - - if (internal::FPUtil::isnotanumber(value)) { - // Format NaN ourselves because sprintf's output is not consistent - // across platforms. - std::size_t nan_size = 4; - const char *nan = upper ? " NAN" : " nan"; - if (!sign) { - --nan_size; - ++nan; - } - CharPtr out = write_str(nan, nan_size, spec); - if (sign) - *out = sign; - return; - } - - if (internal::FPUtil::isinfinity(value)) { - // Format infinity ourselves because sprintf's output is not consistent - // across platforms. - std::size_t inf_size = 4; - const char *inf = upper ? " INF" : " inf"; - if (!sign) { - --inf_size; - ++inf; - } - CharPtr out = write_str(inf, inf_size, spec); - if (sign) - *out = sign; - return; - } - - std::size_t offset = buffer_.size(); - unsigned width = spec.width(); - if (sign) { - buffer_.reserve(buffer_.size() + (std::max)(width, 1u)); - if (width > 0) - --width; - ++offset; - } - - // Build format string. - enum { MAX_FORMAT_SIZE = 10}; // longest format: %#-*.*Lg - Char format[MAX_FORMAT_SIZE]; - Char *format_ptr = format; - *format_ptr++ = '%'; - unsigned width_for_sprintf = width; - if (spec.flag(HASH_FLAG)) - *format_ptr++ = '#'; - if (spec.align() == ALIGN_CENTER) { - width_for_sprintf = 0; - } else { - if (spec.align() == ALIGN_LEFT) - *format_ptr++ = '-'; - if (width != 0) - *format_ptr++ = '*'; - } - if (spec.precision() >= 0) { - *format_ptr++ = '.'; - *format_ptr++ = '*'; - } - - append_float_length(format_ptr, value); - *format_ptr++ = type; - *format_ptr = '\0'; - - // Format using snprintf. - Char fill = internal::CharTraits::cast(spec.fill()); - for (;;) { - std::size_t buffer_size = buffer_.capacity() - offset; -#ifdef _MSC_VER - // MSVC's vsnprintf_s doesn't work with zero size, so reserve - // space for at least one extra character to make the size non-zero. - // Note that the buffer's capacity will increase by more than 1. - if (buffer_size == 0) { - buffer_.reserve(offset + 1); - buffer_size = buffer_.capacity() - offset; - } -#endif - Char *start = &buffer_[offset]; - int n = internal::CharTraits::format_float( - start, buffer_size, format, width_for_sprintf, spec.precision(), value); - if (n >= 0 && offset + n < buffer_.capacity()) { - if (sign) { - if ((spec.align() != ALIGN_RIGHT && spec.align() != ALIGN_DEFAULT) || - *start != ' ') { - *(start - 1) = sign; - sign = 0; - } else { - *(start - 1) = fill; - } - ++n; - } - if (spec.align() == ALIGN_CENTER && - spec.width() > static_cast(n)) { - width = spec.width(); - CharPtr p = grow_buffer(width); - std::copy(p, p + n, p + (width - n) / 2); - fill_padding(p, spec.width(), n, fill); - return; - } - if (spec.fill() != ' ' || sign) { - while (*start == ' ') - *start++ = fill; - if (sign) - *(start - 1) = sign; - } - grow_buffer(n); - return; - } - // If n is negative we ask to increase the capacity by at least 1, - // but as std::vector, the buffer grows exponentially. - buffer_.reserve(n >= 0 ? offset + n + 1 : buffer_.capacity() + 1); - } -} - -/** - \rst - This class template provides operations for formatting and writing data - into a character stream. The output is stored in a memory buffer that grows - dynamically. - - You can use one of the following typedefs for common character types - and the standard allocator: - - +---------------+-----------------------------------------------------+ - | Type | Definition | - +===============+=====================================================+ - | MemoryWriter | BasicMemoryWriter> | - +---------------+-----------------------------------------------------+ - | WMemoryWriter | BasicMemoryWriter> | - +---------------+-----------------------------------------------------+ - - **Example**:: - - MemoryWriter out; - out << "The answer is " << 42 << "\n"; - out.write("({:+f}, {:+f})", -3.14, 3.14); - - This will write the following output to the ``out`` object: - - .. code-block:: none - - The answer is 42 - (-3.140000, +3.140000) - - The output can be converted to an ``std::string`` with ``out.str()`` or - accessed as a C string with ``out.c_str()``. - \endrst - */ -template > -class BasicMemoryWriter : public BasicWriter { - private: - internal::MemoryBuffer buffer_; - - public: - explicit BasicMemoryWriter(const Allocator& alloc = Allocator()) - : BasicWriter(buffer_), buffer_(alloc) {} - -#if FMT_USE_RVALUE_REFERENCES - /** - \rst - Constructs a :class:`fmt::BasicMemoryWriter` object moving the content - of the other object to it. - \endrst - */ - BasicMemoryWriter(BasicMemoryWriter &&other) - : BasicWriter(buffer_), buffer_(std::move(other.buffer_)) { - } - - /** - \rst - Moves the content of the other ``BasicMemoryWriter`` object to this one. - \endrst - */ - BasicMemoryWriter &operator=(BasicMemoryWriter &&other) { - buffer_ = std::move(other.buffer_); - return *this; - } -#endif -}; - -typedef BasicMemoryWriter MemoryWriter; -typedef BasicMemoryWriter WMemoryWriter; - -/** - \rst - This class template provides operations for formatting and writing data - into a fixed-size array. For writing into a dynamically growing buffer - use :class:`fmt::BasicMemoryWriter`. - - Any write method will throw ``std::runtime_error`` if the output doesn't fit - into the array. - - You can use one of the following typedefs for common character types: - - +--------------+---------------------------+ - | Type | Definition | - +==============+===========================+ - | ArrayWriter | BasicArrayWriter | - +--------------+---------------------------+ - | WArrayWriter | BasicArrayWriter | - +--------------+---------------------------+ - \endrst - */ -template -class BasicArrayWriter : public BasicWriter { - private: - internal::FixedBuffer buffer_; - - public: - /** - \rst - Constructs a :class:`fmt::BasicArrayWriter` object for *array* of the - given size. - \endrst - */ - BasicArrayWriter(Char *array, std::size_t size) - : BasicWriter(buffer_), buffer_(array, size) {} - - /** - \rst - Constructs a :class:`fmt::BasicArrayWriter` object for *array* of the - size known at compile time. - \endrst - */ - template - explicit BasicArrayWriter(Char (&array)[SIZE]) - : BasicWriter(buffer_), buffer_(array, SIZE) {} -}; - -typedef BasicArrayWriter ArrayWriter; -typedef BasicArrayWriter WArrayWriter; - -// Formats a value. -template -void format(BasicFormatter &f, const Char *&format_str, const T &value) { - internal::MemoryBuffer buffer; - - internal::FormatBuf format_buf(buffer); - std::basic_ostream output(&format_buf); - output << value; - - BasicStringRef str(&buffer[0], format_buf.size()); - internal::Arg arg = internal::MakeValue(str); - arg.type = static_cast( - internal::MakeValue::type(str)); - format_str = f.format(format_str, arg); -} - -// Reports a system error without throwing an exception. -// Can be used to report errors from destructors. -void report_system_error(int error_code, StringRef message) FMT_NOEXCEPT; - -#if FMT_USE_WINDOWS_H - -/** A Windows error. */ -class WindowsError : public SystemError { - private: - void init(int error_code, CStringRef format_str, ArgList args); - - public: - /** - \rst - Constructs a :class:`fmt::WindowsError` object with the description - of the form - - .. parsed-literal:: - **: ** - - where ** is the formatted message and ** is the - system message corresponding to the error code. - *error_code* is a Windows error code as given by ``GetLastError``. - If *error_code* is not a valid error code such as -1, the system message - will look like "error -1". - - **Example**:: - - // This throws a WindowsError with the description - // cannot open file 'madeup': The system cannot find the file specified. - // or similar (system message may vary). - const char *filename = "madeup"; - LPOFSTRUCT of = LPOFSTRUCT(); - HFILE file = OpenFile(filename, &of, OF_READ); - if (file == HFILE_ERROR) { - throw fmt::WindowsError(GetLastError(), - "cannot open file '{}'", filename); - } - \endrst - */ - WindowsError(int error_code, CStringRef message) { - init(error_code, message, ArgList()); - } - FMT_VARIADIC_CTOR(WindowsError, init, int, CStringRef) -}; - -// Reports a Windows error without throwing an exception. -// Can be used to report errors from destructors. -void report_windows_error(int error_code, StringRef message) FMT_NOEXCEPT; - -#endif - -enum Color { BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE }; - -/** - Formats a string and prints it to stdout using ANSI escape sequences - to specify color (experimental). - Example: - print_colored(fmt::RED, "Elapsed time: {0:.2f} seconds", 1.23); - */ -void print_colored(Color c, CStringRef format, ArgList args); - -/** - \rst - Formats arguments and returns the result as a string. - - **Example**:: - - std::string message = format("The answer is {}", 42); - \endrst -*/ -inline std::string format(CStringRef format_str, ArgList args) { - MemoryWriter w; - w.write(format_str, args); - return w.str(); -} - -inline std::wstring format(WCStringRef format_str, ArgList args) { - WMemoryWriter w; - w.write(format_str, args); - return w.str(); -} - -/** - \rst - Prints formatted data to the file *f*. - - **Example**:: - - print(stderr, "Don't {}!", "panic"); - \endrst - */ -void print(std::FILE *f, CStringRef format_str, ArgList args); - -/** - \rst - Prints formatted data to ``stdout``. - - **Example**:: - - print("Elapsed time: {0:.2f} seconds", 1.23); - \endrst - */ -void print(CStringRef format_str, ArgList args); - -template -void printf(BasicWriter &w, BasicCStringRef format, ArgList args) { - internal::PrintfFormatter(args).format(w, format); -} - -/** - \rst - Formats arguments and returns the result as a string. - - **Example**:: - - std::string message = fmt::sprintf("The answer is %d", 42); - \endrst -*/ -inline std::string sprintf(CStringRef format, ArgList args) { - MemoryWriter w; - printf(w, format, args); - return w.str(); -} - -inline std::wstring sprintf(WCStringRef format, ArgList args) { - WMemoryWriter w; - printf(w, format, args); - return w.str(); -} - -/** - \rst - Prints formatted data to the file *f*. - - **Example**:: - - fmt::fprintf(stderr, "Don't %s!", "panic"); - \endrst - */ -int fprintf(std::FILE *f, CStringRef format, ArgList args); - -/** - \rst - Prints formatted data to ``stdout``. - - **Example**:: - - fmt::printf("Elapsed time: %.2f seconds", 1.23); - \endrst - */ -inline int printf(CStringRef format, ArgList args) { - return fprintf(stdout, format, args); -} - -/** - Fast integer formatter. - */ -class FormatInt { - private: - // Buffer should be large enough to hold all digits (digits10 + 1), - // a sign and a null character. - enum {BUFFER_SIZE = std::numeric_limits::digits10 + 3}; - mutable char buffer_[BUFFER_SIZE]; - char *str_; - - // Formats value in reverse and returns the number of digits. - char *format_decimal(ULongLong value) { - char *buffer_end = buffer_ + BUFFER_SIZE - 1; - while (value >= 100) { - // Integer division is slow so do it for a group of two digits instead - // of for every digit. The idea comes from the talk by Alexandrescu - // "Three Optimization Tips for C++". See speed-test for a comparison. - unsigned index = static_cast((value % 100) * 2); - value /= 100; - *--buffer_end = internal::Data::DIGITS[index + 1]; - *--buffer_end = internal::Data::DIGITS[index]; - } - if (value < 10) { - *--buffer_end = static_cast('0' + value); - return buffer_end; - } - unsigned index = static_cast(value * 2); - *--buffer_end = internal::Data::DIGITS[index + 1]; - *--buffer_end = internal::Data::DIGITS[index]; - return buffer_end; - } - - void FormatSigned(LongLong value) { - ULongLong abs_value = static_cast(value); - bool negative = value < 0; - if (negative) - abs_value = 0 - abs_value; - str_ = format_decimal(abs_value); - if (negative) - *--str_ = '-'; - } - - public: - explicit FormatInt(int value) { FormatSigned(value); } - explicit FormatInt(long value) { FormatSigned(value); } - explicit FormatInt(LongLong value) { FormatSigned(value); } - explicit FormatInt(unsigned value) : str_(format_decimal(value)) {} - explicit FormatInt(unsigned long value) : str_(format_decimal(value)) {} - explicit FormatInt(ULongLong value) : str_(format_decimal(value)) {} - - /** - Returns the number of characters written to the output buffer. - */ - std::size_t size() const { return buffer_ - str_ + BUFFER_SIZE - 1; } - - /** - Returns a pointer to the output buffer content. No terminating null - character is appended. - */ - const char *data() const { return str_; } - - /** - Returns a pointer to the output buffer content with terminating null - character appended. - */ - const char *c_str() const { - buffer_[BUFFER_SIZE - 1] = '\0'; - return str_; - } - - /** - \rst - Returns the content of the output buffer as an ``std::string``. - \endrst - */ - std::string str() const { return std::string(str_, size()); } -}; - -// Formats a decimal integer value writing into buffer and returns -// a pointer to the end of the formatted string. This function doesn't -// write a terminating null character. -template -inline void format_decimal(char *&buffer, T value) { - typename internal::IntTraits::MainType abs_value = value; - if (internal::is_negative(value)) { - *buffer++ = '-'; - abs_value = 0 - abs_value; - } - if (abs_value < 100) { - if (abs_value < 10) { - *buffer++ = static_cast('0' + abs_value); - return; - } - unsigned index = static_cast(abs_value * 2); - *buffer++ = internal::Data::DIGITS[index]; - *buffer++ = internal::Data::DIGITS[index + 1]; - return; - } - unsigned num_digits = internal::count_digits(abs_value); - internal::format_decimal(buffer, abs_value, num_digits); - buffer += num_digits; -} - -/** - \rst - Returns a named argument for formatting functions. - - **Example**:: - - print("Elapsed time: {s:.2f} seconds", arg("s", 1.23)); - - \endrst - */ -template -inline internal::NamedArg arg(StringRef name, const T &arg) { - return internal::NamedArg(name, arg); -} - -template -inline internal::NamedArg arg(WStringRef name, const T &arg) { - return internal::NamedArg(name, arg); -} - -// The following two functions are deleted intentionally to disable -// nested named arguments as in ``format("{}", arg("a", arg("b", 42)))``. -template -void arg(StringRef, const internal::NamedArg&) FMT_DELETED_OR_UNDEFINED; -template -void arg(WStringRef, const internal::NamedArg&) FMT_DELETED_OR_UNDEFINED; -} - -#if FMT_GCC_VERSION -// Use the system_header pragma to suppress warnings about variadic macros -// because suppressing -Wvariadic-macros with the diagnostic pragma doesn't -// work. It is used at the end because we want to suppress as little warnings -// as possible. -# pragma GCC system_header -#endif - -// This is used to work around VC++ bugs in handling variadic macros. -#define FMT_EXPAND(args) args - -// Returns the number of arguments. -// Based on https://groups.google.com/forum/#!topic/comp.std.c/d-6Mj5Lko_s. -#define FMT_NARG(...) FMT_NARG_(__VA_ARGS__, FMT_RSEQ_N()) -#define FMT_NARG_(...) FMT_EXPAND(FMT_ARG_N(__VA_ARGS__)) -#define FMT_ARG_N(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, N, ...) N -#define FMT_RSEQ_N() 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 - -#define FMT_CONCAT(a, b) a##b -#define FMT_FOR_EACH_(N, f, ...) \ - FMT_EXPAND(FMT_CONCAT(FMT_FOR_EACH, N)(f, __VA_ARGS__)) -#define FMT_FOR_EACH(f, ...) \ - FMT_EXPAND(FMT_FOR_EACH_(FMT_NARG(__VA_ARGS__), f, __VA_ARGS__)) - -#define FMT_ADD_ARG_NAME(type, index) type arg##index -#define FMT_GET_ARG_NAME(type, index) arg##index - -#if FMT_USE_VARIADIC_TEMPLATES -# define FMT_VARIADIC_(Char, ReturnType, func, call, ...) \ - template \ - ReturnType func(FMT_FOR_EACH(FMT_ADD_ARG_NAME, __VA_ARGS__), \ - const Args & ... args) { \ - typename fmt::internal::ArgArray::Type array; \ - call(FMT_FOR_EACH(FMT_GET_ARG_NAME, __VA_ARGS__), \ - fmt::internal::make_arg_list(array, args...)); \ - } -#else -// Defines a wrapper for a function taking __VA_ARGS__ arguments -// and n additional arguments of arbitrary types. -# define FMT_WRAP(Char, ReturnType, func, call, n, ...) \ - template \ - inline ReturnType func(FMT_FOR_EACH(FMT_ADD_ARG_NAME, __VA_ARGS__), \ - FMT_GEN(n, FMT_MAKE_ARG)) { \ - fmt::internal::ArgArray::Type arr; \ - FMT_GEN(n, FMT_ASSIGN_##Char); \ - call(FMT_FOR_EACH(FMT_GET_ARG_NAME, __VA_ARGS__), fmt::ArgList( \ - fmt::internal::make_type(FMT_GEN(n, FMT_MAKE_REF2)), arr)); \ - } - -# define FMT_VARIADIC_(Char, ReturnType, func, call, ...) \ - inline ReturnType func(FMT_FOR_EACH(FMT_ADD_ARG_NAME, __VA_ARGS__)) { \ - call(FMT_FOR_EACH(FMT_GET_ARG_NAME, __VA_ARGS__), fmt::ArgList()); \ - } \ - FMT_WRAP(Char, ReturnType, func, call, 1, __VA_ARGS__) \ - FMT_WRAP(Char, ReturnType, func, call, 2, __VA_ARGS__) \ - FMT_WRAP(Char, ReturnType, func, call, 3, __VA_ARGS__) \ - FMT_WRAP(Char, ReturnType, func, call, 4, __VA_ARGS__) \ - FMT_WRAP(Char, ReturnType, func, call, 5, __VA_ARGS__) \ - FMT_WRAP(Char, ReturnType, func, call, 6, __VA_ARGS__) \ - FMT_WRAP(Char, ReturnType, func, call, 7, __VA_ARGS__) \ - FMT_WRAP(Char, ReturnType, func, call, 8, __VA_ARGS__) \ - FMT_WRAP(Char, ReturnType, func, call, 9, __VA_ARGS__) \ - FMT_WRAP(Char, ReturnType, func, call, 10, __VA_ARGS__) \ - FMT_WRAP(Char, ReturnType, func, call, 11, __VA_ARGS__) \ - FMT_WRAP(Char, ReturnType, func, call, 12, __VA_ARGS__) \ - FMT_WRAP(Char, ReturnType, func, call, 13, __VA_ARGS__) \ - FMT_WRAP(Char, ReturnType, func, call, 14, __VA_ARGS__) \ - FMT_WRAP(Char, ReturnType, func, call, 15, __VA_ARGS__) -#endif // FMT_USE_VARIADIC_TEMPLATES - -/** - \rst - Defines a variadic function with the specified return type, function name - and argument types passed as variable arguments to this macro. - - **Example**:: - - void print_error(const char *file, int line, const char *format, - fmt::ArgList args) { - fmt::print("{}: {}: ", file, line); - fmt::print(format, args); - } - FMT_VARIADIC(void, print_error, const char *, int, const char *) - - ``FMT_VARIADIC`` is used for compatibility with legacy C++ compilers that - don't implement variadic templates. You don't have to use this macro if - you don't need legacy compiler support and can use variadic templates - directly:: - - template - void print_error(const char *file, int line, const char *format, - const Args & ... args) { - fmt::print("{}: {}: ", file, line); - fmt::print(format, args...); - } - \endrst - */ -#define FMT_VARIADIC(ReturnType, func, ...) \ - FMT_VARIADIC_(char, ReturnType, func, return func, __VA_ARGS__) - -#define FMT_VARIADIC_W(ReturnType, func, ...) \ - FMT_VARIADIC_(wchar_t, ReturnType, func, return func, __VA_ARGS__) - -#define FMT_CAPTURE_ARG_(id, index) ::fmt::arg(#id, id) - -#define FMT_CAPTURE_ARG_W_(id, index) ::fmt::arg(L###id, id) - -/** - \rst - Convenient macro to capture the arguments' names and values into several - ``fmt::arg(name, value)``. - - **Example**:: - - int x = 1, y = 2; - print("point: ({x}, {y})", FMT_CAPTURE(x, y)); - // same as: - // print("point: ({x}, {y})", arg("x", x), arg("y", y)); - - \endrst - */ -#define FMT_CAPTURE(...) FMT_FOR_EACH(FMT_CAPTURE_ARG_, __VA_ARGS__) - -#define FMT_CAPTURE_W(...) FMT_FOR_EACH(FMT_CAPTURE_ARG_W_, __VA_ARGS__) - -namespace fmt { -FMT_VARIADIC(std::string, format, CStringRef) -FMT_VARIADIC_W(std::wstring, format, WCStringRef) -FMT_VARIADIC(void, print, CStringRef) -FMT_VARIADIC(void, print, std::FILE *, CStringRef) - -FMT_VARIADIC(void, print_colored, Color, CStringRef) -FMT_VARIADIC(std::string, sprintf, CStringRef) -FMT_VARIADIC_W(std::wstring, sprintf, WCStringRef) -FMT_VARIADIC(int, printf, CStringRef) -FMT_VARIADIC(int, fprintf, std::FILE *, CStringRef) - -#if FMT_USE_IOSTREAMS -/** - \rst - Prints formatted data to the stream *os*. - - **Example**:: - - print(cerr, "Don't {}!", "panic"); - \endrst - */ -void print(std::ostream &os, CStringRef format_str, ArgList args); -FMT_VARIADIC(void, print, std::ostream &, CStringRef) -#endif -} // namespace fmt - -#if FMT_USE_USER_DEFINED_LITERALS -namespace fmt { -namespace internal { - -template -struct UdlFormat { - const Char *str; - - template - auto operator()(Args && ... args) const - -> decltype(format(str, std::forward(args)...)) { - return format(str, std::forward(args)...); - } -}; - -template -struct UdlArg { - const Char *str; - - template - NamedArg operator=(T &&value) const { - return {str, std::forward(value)}; - } -}; - -} // namespace internal - -inline namespace literals { - -/** - \rst - C++11 literal equivalent of :func:`fmt::format`. - - **Example**:: - - using namespace fmt::literals; - std::string message = "The answer is {}"_format(42); - \endrst - */ -inline internal::UdlFormat -operator"" _format(const char *s, std::size_t) { return {s}; } -inline internal::UdlFormat -operator"" _format(const wchar_t *s, std::size_t) { return {s}; } - -/** - \rst - C++11 literal equivalent of :func:`fmt::arg`. - - **Example**:: - - using namespace fmt::literals; - print("Elapsed time: {s:.2f} seconds", "s"_a=1.23); - \endrst - */ -inline internal::UdlArg -operator"" _a(const char *s, std::size_t) { return {s}; } -inline internal::UdlArg -operator"" _a(const wchar_t *s, std::size_t) { return {s}; } - -} // inline namespace literals -} // namespace fmt -#endif // FMT_USE_USER_DEFINED_LITERALS - -// Restore warnings. -#if FMT_GCC_VERSION >= 406 -# pragma GCC diagnostic pop -#endif - -#if defined(__clang__) && !defined(__INTEL_COMPILER) -# pragma clang diagnostic pop -#endif - -#ifdef FMT_HEADER_ONLY -# include "format.cc" -#endif - -#endif // FMT_FORMAT_H_ -- cgit v1.2.3