ceph/src/boost/boost/core/no_exceptions_support.hpp

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