diff options
Diffstat (limited to 'Source/boost/detail/workaround.hpp')
| -rwxr-xr-x | Source/boost/detail/workaround.hpp | 148 |
1 files changed, 74 insertions, 74 deletions
diff --git a/Source/boost/detail/workaround.hpp b/Source/boost/detail/workaround.hpp index 3121928..0d5a2b2 100755 --- a/Source/boost/detail/workaround.hpp +++ b/Source/boost/detail/workaround.hpp @@ -1,74 +1,74 @@ -// Copyright David Abrahams 2002. Permission to copy, use,
-// modify, sell and distribute this software is granted provided this
-// copyright notice appears in all copies. This software is provided
-// "as is" without express or implied warranty, and with no claim as
-// to its suitability for any purpose.
-#ifndef WORKAROUND_DWA2002126_HPP
-# define WORKAROUND_DWA2002126_HPP
-
-// Compiler/library version workaround macro
-//
-// Usage:
-//
-// #if BOOST_WORKAROUND(BOOST_MSVC, <= 1200)
-// ... // workaround code here
-// #endif
-//
-// When BOOST_STRICT_CONFIG is defined, expands to 0. Otherwise, the
-// first argument must be undefined or expand to a numeric
-// value. The above expands to:
-//
-// (BOOST_MSVC) != 0 && (BOOST_MSVC) <= 1200
-//
-// When used for workarounds that apply to the latest known version
-// and all earlier versions of a compiler, the following convention
-// should be observed:
-//
-// #if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1301))
-//
-// The version number in this case corresponds to the last version in
-// which the workaround was known to have been required. When
-// BOOST_DETECT_OUTDATED_WORKAROUNDS is not the defined, the macro
-// BOOST_TESTED_AT(x) expands to "!= 0", which effectively activates
-// the workaround for any version of the compiler. When
-// BOOST_DETECT_OUTDATED_WORKAROUNDS is defined, a compiler warning or
-// error will be issued if the compiler version exceeds the argument
-// to BOOST_TESTED_AT(). This can be used to locate workarounds which
-// may be obsoleted by newer versions.
-
-# ifndef BOOST_STRICT_CONFIG
-
-# define BOOST_WORKAROUND(symbol, test) \
- ((symbol != 0) && (1 % (( (symbol test) ) + 1)))
-// ^ ^ ^ ^
-// The extra level of parenthesis nesting above, along with the
-// BOOST_OPEN_PAREN indirection below, is required to satisfy the
-// broken preprocessor in MWCW 8.3 and earlier.
-//
-// The basic mechanism works as follows:
-// (symbol test) + 1 => if (symbol test) then 2 else 1
-// 1 % ((symbol test) + 1) => if (symbol test) then 1 else 0
-//
-// The complication with % is for cooperation with BOOST_TESTED_AT().
-// When "test" is BOOST_TESTED_AT(x) and
-// BOOST_DETECT_OUTDATED_WORKAROUNDS is #defined,
-//
-// symbol test => if (symbol <= x) then 1 else -1
-// (symbol test) + 1 => if (symbol <= x) then 2 else 0
-// 1 % ((symbol test) + 1) => if (symbol <= x) then 1 else divide-by-zero
-//
-
-# ifdef BOOST_DETECT_OUTDATED_WORKAROUNDS
-# define BOOST_OPEN_PAREN (
-# define BOOST_TESTED_AT(value) > value) ?(-1): BOOST_OPEN_PAREN 1
-# else
-# define BOOST_TESTED_AT(value) != ((value)-(value))
-# endif
-
-# else
-
-# define BOOST_WORKAROUND(symbol, test) 0
-
-# endif
-
-#endif // WORKAROUND_DWA2002126_HPP
+// Copyright David Abrahams 2002. Permission to copy, use, +// modify, sell and distribute this software is granted provided this +// copyright notice appears in all copies. This software is provided +// "as is" without express or implied warranty, and with no claim as +// to its suitability for any purpose. +#ifndef WORKAROUND_DWA2002126_HPP +# define WORKAROUND_DWA2002126_HPP + +// Compiler/library version workaround macro +// +// Usage: +// +// #if BOOST_WORKAROUND(BOOST_MSVC, <= 1200) +// ... // workaround code here +// #endif +// +// When BOOST_STRICT_CONFIG is defined, expands to 0. Otherwise, the +// first argument must be undefined or expand to a numeric +// value. The above expands to: +// +// (BOOST_MSVC) != 0 && (BOOST_MSVC) <= 1200 +// +// When used for workarounds that apply to the latest known version +// and all earlier versions of a compiler, the following convention +// should be observed: +// +// #if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1301)) +// +// The version number in this case corresponds to the last version in +// which the workaround was known to have been required. When +// BOOST_DETECT_OUTDATED_WORKAROUNDS is not the defined, the macro +// BOOST_TESTED_AT(x) expands to "!= 0", which effectively activates +// the workaround for any version of the compiler. When +// BOOST_DETECT_OUTDATED_WORKAROUNDS is defined, a compiler warning or +// error will be issued if the compiler version exceeds the argument +// to BOOST_TESTED_AT(). This can be used to locate workarounds which +// may be obsoleted by newer versions. + +# ifndef BOOST_STRICT_CONFIG + +# define BOOST_WORKAROUND(symbol, test) \ + ((symbol != 0) && (1 % (( (symbol test) ) + 1))) +// ^ ^ ^ ^ +// The extra level of parenthesis nesting above, along with the +// BOOST_OPEN_PAREN indirection below, is required to satisfy the +// broken preprocessor in MWCW 8.3 and earlier. +// +// The basic mechanism works as follows: +// (symbol test) + 1 => if (symbol test) then 2 else 1 +// 1 % ((symbol test) + 1) => if (symbol test) then 1 else 0 +// +// The complication with % is for cooperation with BOOST_TESTED_AT(). +// When "test" is BOOST_TESTED_AT(x) and +// BOOST_DETECT_OUTDATED_WORKAROUNDS is #defined, +// +// symbol test => if (symbol <= x) then 1 else -1 +// (symbol test) + 1 => if (symbol <= x) then 2 else 0 +// 1 % ((symbol test) + 1) => if (symbol <= x) then 1 else divide-by-zero +// + +# ifdef BOOST_DETECT_OUTDATED_WORKAROUNDS +# define BOOST_OPEN_PAREN ( +# define BOOST_TESTED_AT(value) > value) ?(-1): BOOST_OPEN_PAREN 1 +# else +# define BOOST_TESTED_AT(value) != ((value)-(value)) +# endif + +# else + +# define BOOST_WORKAROUND(symbol, test) 0 + +# endif + +#endif // WORKAROUND_DWA2002126_HPP |