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// Copyright Joakim Karlsson & Kim Gräsman 2010-2012.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#ifndef IGLOO_EXCEPTIONS_H
#define IGLOO_EXCEPTIONS_H
#include "assert.h"
namespace snowhouse {
template <typename ExceptionType>
class ExceptionStorage
{
public:
static std::auto_ptr<ExceptionType>& last_exception()
{
static std::auto_ptr<ExceptionType> last;
return last;
}
void compiler_thinks_i_am_unused() {}
~ExceptionStorage()
{
last_exception().reset(NULL);
}
};
template <typename ExceptionType>
inline ExceptionType& LastException()
{
if(ExceptionStorage<ExceptionType>::last_exception().get() == NULL)
{
Assert::Failure("No exception was stored");
}
return *(ExceptionStorage<ExceptionType>::last_exception().get());
}
}
#define IGLOO_CONCAT2(a, b) a##b
#define IGLOO_CONCAT(a, b) IGLOO_CONCAT2(a, b)
#define AssertThrows(EXCEPTION_TYPE, METHOD) \
ExceptionStorage<EXCEPTION_TYPE> IGLOO_CONCAT(IGLOO_storage_, __LINE__); IGLOO_CONCAT(IGLOO_storage_, __LINE__).compiler_thinks_i_am_unused(); \
{ \
bool wrong_exception = false; \
bool no_exception = false; \
try \
{ \
METHOD; \
no_exception = true; \
} \
catch (const EXCEPTION_TYPE& e) \
{ \
ExceptionStorage<EXCEPTION_TYPE>::last_exception() = std::auto_ptr<EXCEPTION_TYPE>(new EXCEPTION_TYPE(e)); \
} \
catch(...) \
{ \
wrong_exception = true; \
} \
if(no_exception) \
{ \
std::ostringstream stm; \
stm << "Expected " << #EXCEPTION_TYPE << ". No exception was thrown."; \
Assert::Failure(stm.str()); \
} \
if(wrong_exception) \
{ \
std::ostringstream stm; \
stm << "Expected " << #EXCEPTION_TYPE << ". Wrong exception was thrown."; \
Assert::Failure(stm.str()); \
} \
}
#endif
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