| #ifndef BOOST_CORE_NO_EXCEPTIONS_SUPPORT_HPP |
| #define BOOST_CORE_NO_EXCEPTIONS_SUPPORT_HPP |
| |
| #if defined(_MSC_VER) |
| # 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. |
| //---------------------------------------------------------------------- |
| |
| #include <boost/config.hpp> |
| #include <boost/config/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(BOOST_BORLANDC, BOOST_TESTED_AT(0x564)) |
| # define BOOST_TRY { if ("") |
| # define BOOST_CATCH(x) else if (!"") |
| # elif !defined(BOOST_MSVC) || BOOST_MSVC >= 1900 |
| # define BOOST_TRY { if (true) |
| # define BOOST_CATCH(x) else if (false) |
| # else |
| // warning C4127: conditional expression is constant |
| # define BOOST_TRY { \ |
| __pragma(warning(push)) \ |
| __pragma(warning(disable: 4127)) \ |
| if (true) \ |
| __pragma(warning(pop)) |
| # define BOOST_CATCH(x) else \ |
| __pragma(warning(push)) \ |
| __pragma(warning(disable: 4127)) \ |
| if (false) \ |
| __pragma(warning(pop)) |
| # endif |
| # define BOOST_RETHROW |
| # define BOOST_CATCH_END } |
| #endif |
| |
| |
| #endif |
