boost/qvm/static_assert.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_STATIC_ASSERT
0007
0008 #   if __cplusplus >= 201103L
0009
0010 #       include <utility>
0011 #       define BOOST_QVM_STATIC_ASSERT(condition) static_assert(condition, "Boost QVM static assertion failure")
0012
0013 #   else
0014
0015 #       ifdef __GNUC__
0016 #           define BOOST_QVM_ATTRIBUTE_UNUSED __attribute__((unused))
0017 #       else
0018 #           define BOOST_QVM_ATTRIBUTE_UNUSED
0019 #       endif
0020
0021 #       define BOOST_QVM_TOKEN_PASTE(x, y) x ## y
0022 #       define BOOST_QVM_TOKEN_PASTE2(x, y) BOOST_QVM_TOKEN_PASTE(x, y)
0023 #       define BOOST_QVM_STATIC_ASSERT(condition) typedef char BOOST_QVM_TOKEN_PASTE2(boost_qvm_static_assert_failure_,__LINE__)[(condition)?1:-1] BOOST_QVM_ATTRIBUTE_UNUSED
0024
0025 #   endif
0026
0027 #endif