boost/qvm/throw_exception.hpp

0001 // Copyright 2008-2022 Emil Dotchevski and Reverge Studios, Inc.
0002
0003 // Distributed under the Boost Software License, Version 1.0. (See accompanying
0004 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0005
0006 #ifndef BOOST_QVM_THROW_EXCEPTION
0007
0008 #   define BOOST_QVM_THROW_EXCEPTION ::boost::qvm::throw_exception
0009
0010 #   include <exception>
0011
0012 #   ifndef BOOST_QVM_NO_EXCEPTIONS
0013 #       if defined(__clang__) && !defined(__ibmxl__) // Clang C++ emulates GCC, so it has to appear early.
0014 #           if !__has_feature(cxx_exceptions)
0015 #               define BOOST_QVM_NO_EXCEPTIONS
0016 #           endif
0017 #       elif defined(__DMC__) // Digital Mars C++
0018 #           if !defined(_CPPUNWIND)
0019 #               define BOOST_QVM_NO_EXCEPTIONS
0020 #           endif
0021 #       elif defined(__GNUC__) && !defined(__ibmxl__) // GNU C++:
0022 #           if !defined(__EXCEPTIONS)
0023 #               define BOOST_QVM_NO_EXCEPTIONS
0024 #           endif
0025 #       elif defined(__KCC) // Kai C++
0026 #           if !defined(_EXCEPTIONS)
0027 #               define BOOST_QVM_NO_EXCEPTIONS
0028 #           endif
0029 #       elif defined(__CODEGEARC__) // CodeGear - must be checked for before Borland
0030 #           if !defined(_CPPUNWIND) && !defined(__EXCEPTIONS)
0031 #               define BOOST_QVM_NO_EXCEPTIONS
0032 #           endif
0033 #       elif defined(__BORLANDC__) // Borland
0034 #           if !defined(_CPPUNWIND) && !defined(__EXCEPTIONS)
0035 #               define BOOST_QVM_NO_EXCEPTIONS
0036 #           endif
0037 #       elif defined(__MWERKS__) // Metrowerks CodeWarrior
0038 #           if !__option(exceptions)
0039 #               define BOOST_QVM_NO_EXCEPTIONS
0040 #           endif
0041 #       elif defined(__IBMCPP__) && defined(__COMPILER_VER__) && defined(__MVS__) // IBM z/OS XL C/C++
0042 #           if !defined(_CPPUNWIND) && !defined(__EXCEPTIONS)
0043 #           define BOOST_QVM_NO_EXCEPTIONS
0044 #           endif
0045 #       elif defined(__ibmxl__) // IBM XL C/C++ for Linux (Little Endian)
0046 #           if !__has_feature(cxx_exceptions)
0047 #               define BOOST_QVM_NO_EXCEPTIONS
0048 #           endif
0049 #       elif defined(_MSC_VER) // Microsoft Visual C++
0050             // Must remain the last #elif since some other vendors (Metrowerks, for
0051             // example) also #define _MSC_VER
0052 #           if !defined(_CPPUNWIND)
0053 #               define BOOST_QVM_NO_EXCEPTIONS
0054 #           endif
0055 #       endif
0056 #   endif
0057
0058 ////////////////////////////////////////
0059
0060 #   ifdef BOOST_NORETURN
0061 #       define BOOST_QVM_NORETURN BOOST_NORETURN
0062 #   else
0063 #       if defined(_MSC_VER)
0064 #           define BOOST_QVM_NORETURN __declspec(noreturn)
0065 #       elif defined(__GNUC__)
0066 #           define BOOST_QVM_NORETURN __attribute__ ((__noreturn__))
0067 #       elif defined(__has_attribute) && defined(__SUNPRO_CC) && (__SUNPRO_CC > 0x5130)
0068 #           if __has_attribute(noreturn)
0069 #               define BOOST_QVM_NORETURN [[noreturn]]
0070 #           endif
0071 #       elif defined(__has_cpp_attribute)
0072 #           if __has_cpp_attribute(noreturn)
0073 #               define BOOST_QVM_NORETURN [[noreturn]]
0074 #           endif
0075 #       endif
0076 #   endif
0077
0078 #   if !defined(BOOST_QVM_NORETURN)
0079 #       define BOOST_QVM_NORETURN
0080 #   endif
0081
0082 ////////////////////////////////////////
0083
0084 #   ifdef BOOST_QVM_NO_EXCEPTIONS
0085
0086 namespace boost
0087 {
0088     BOOST_QVM_NORETURN void throw_exception( std::exception const & ); // user defined
0089 }
0090
0091 namespace boost { namespace qvm {
0092
0093     template <class T>
0094     BOOST_QVM_NORETURN void throw_exception( T const & e )
0095     {
0096         ::boost::throw_exception(e);
0097     }
0098
0099 } }
0100
0101 #   else
0102
0103 namespace boost { namespace qvm {
0104
0105     template <class T>
0106     BOOST_QVM_NORETURN void throw_exception( T const & e )
0107     {
0108         throw e;
0109     }
0110
0111 } }
0112
0113 #   endif
0114
0115 #endif