#ifndef BOOST_DETAIL_NO_EXCEPTIONS_SUPPORT_HPP_ | |
#define BOOST_DETAIL_NO_EXCEPTIONS_SUPPORT_HPP_ | |
#if (defined _MSC_VER) && (_MSC_VER >= 1200) | |
# pragma once | |
#endif | |
//---------------------------------------------------------------------- | |
// (C) Copyright 2004 Pavel Vozenilek. | |
// Use, modification and distribution is subject to 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) | |
// | |
// | |
// This file contains helper macros used when exception support may be | |
// disabled (as indicated by macro BOOST_NO_EXCEPTIONS). | |
// | |
// Before picking up these macros you may consider using RAII techniques | |
// to deal with exceptions - their syntax can be always the same with | |
// or without exception support enabled. | |
// | |
/* Example of use: | |
void foo() { | |
BOOST_TRY { | |
... | |
} BOOST_CATCH(const std::bad_alloc&) { | |
... | |
BOOST_RETHROW | |
} BOOST_CATCH(const std::exception& e) { | |
... | |
} | |
BOOST_CATCH_END | |
} | |
With exception support enabled it will expand into: | |
void foo() { | |
{ try { | |
... | |
} catch (const std::bad_alloc&) { | |
... | |
throw; | |
} catch (const std::exception& e) { | |
... | |
} | |
} | |
} | |
With exception support disabled it will expand into: | |
void foo() { | |
{ if(true) { | |
... | |
} else if (false) { | |
... | |
} else if (false) { | |
... | |
} | |
} | |
} | |
*/ | |
//---------------------------------------------------------------------- | |
#include <boost/config.hpp> | |
#include <boost/detail/workaround.hpp> | |
#if !(defined BOOST_NO_EXCEPTIONS) | |
# define BOOST_TRY { try | |
# define BOOST_CATCH(x) catch(x) | |
# define BOOST_RETHROW throw; | |
# define BOOST_CATCH_END } | |
#else | |
# if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564)) | |
# define BOOST_TRY { if ("") | |
# define BOOST_CATCH(x) else if (!"") | |
# else | |
# define BOOST_TRY { if (true) | |
# define BOOST_CATCH(x) else if (false) | |
# endif | |
# define BOOST_RETHROW | |
# define BOOST_CATCH_END } | |
#endif | |
#endif |