| 1 | #ifndef BOOST_CORE_NO_EXCEPTIONS_SUPPORT_HPP |
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| 2 | #define BOOST_CORE_NO_EXCEPTIONS_SUPPORT_HPP |
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| 3 | |
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| 4 | #if defined(_MSC_VER) |
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| 5 | # pragma once |
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| 6 | #endif |
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| 7 | |
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| 8 | //---------------------------------------------------------------------- |
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| 9 | // (C) Copyright 2004 Pavel Vozenilek. |
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| 10 | // Use, modification and distribution is subject to the Boost Software |
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| 11 | // License, Version 1.0. (See accompanying file LICENSE_1_0.txt |
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| 12 | // or copy at http://www.boost.org/LICENSE_1_0.txt) |
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| 13 | // |
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| 14 | // |
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| 15 | // This file contains helper macros used when exception support may be |
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| 16 | // disabled (as indicated by macro BOOST_NO_EXCEPTIONS). |
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| 17 | // |
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| 18 | // Before picking up these macros you may consider using RAII techniques |
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| 19 | // to deal with exceptions - their syntax can be always the same with |
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| 20 | // or without exception support enabled. |
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| 21 | //---------------------------------------------------------------------- |
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| 22 | |
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| 23 | #include <boost/config.hpp> |
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| 24 | #include <boost/config/workaround.hpp> |
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| 25 | |
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| 26 | #if !(defined BOOST_NO_EXCEPTIONS) |
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| 27 | # define BOOST_TRY { try |
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| 28 | # define BOOST_CATCH(x) catch(x) |
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| 29 | # define BOOST_RETHROW throw; |
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| 30 | # define BOOST_CATCH_END } |
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| 31 | #else |
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| 32 | # if BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x564)) |
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| 33 | # define BOOST_TRY { if ("") |
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| 34 | # define BOOST_CATCH(x) else if (!"") |
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| 35 | # elif !defined(BOOST_MSVC) || BOOST_MSVC >= 1900 |
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| 36 | # define BOOST_TRY { if (true) |
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| 37 | # define BOOST_CATCH(x) else if (false) |
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| 38 | # else |
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| 39 | // warning C4127: conditional expression is constant |
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| 40 | # define BOOST_TRY { \ |
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| 41 | __pragma(warning(push)) \ |
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| 42 | __pragma(warning(disable: 4127)) \ |
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| 43 | if (true) \ |
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| 44 | __pragma(warning(pop)) |
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| 45 | # define BOOST_CATCH(x) else \ |
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| 46 | __pragma(warning(push)) \ |
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| 47 | __pragma(warning(disable: 4127)) \ |
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| 48 | if (false) \ |
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| 49 | __pragma(warning(pop)) |
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| 50 | # endif |
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| 51 | # define BOOST_RETHROW |
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| 52 | # define BOOST_CATCH_END } |
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| 53 | #endif |
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| 54 | |
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| 55 | |
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| 56 | #endif |
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| 57 | |
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