36 lines
1.3 KiB
C++
36 lines
1.3 KiB
C++
/*
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* This file is part of the DXX-Rebirth project <http://www.dxx-rebirth.com/>.
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* It is copyright by its individual contributors, as recorded in the
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* project's Git history. See COPYING.txt at the top level for license
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* terms and a link to the Git history.
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*/
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#pragma once
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#include <type_traits>
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#if defined(DXX_HAVE_CXX11_STATIC_ASSERT)
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/* native */
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#define static_assert(C,M) static_assert(C,M)
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#elif defined(DXX_HAVE_BOOST_STATIC_ASSERT)
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#include <boost/static_assert.hpp>
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#define static_assert(C,M) BOOST_STATIC_ASSERT_MSG((C),M)
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#else
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#define DXX_C_STATIC_ASSERT_PASTE2(A,B,C) A##_##B##_##C
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#define DXX_C_STATIC_ASSERT_PASTE(A,B,C) DXX_C_STATIC_ASSERT_PASTE2(A,B,C)
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#ifdef DXX_HAVE_C_TYPEDEF_STATIC_ASSERT
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#define static_assert(C,M) enum { DXX_C_STATIC_ASSERT_PASTE(static_assertion_check, __LINE__, __COUNTER__) = sizeof(char[(C) ? 1 : -1]) }
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#else
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#define static_assert(C,M) enum { DXX_C_STATIC_ASSERT_PASTE(static_assertion_disabled, __LINE__, __COUNTER__) = sizeof((C)) }
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#endif
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#endif
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#define DEFINE_ASSERT_HELPER_CLASS(N,OP,STR) \
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template <typename T, T L, T R> \
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class N : public std::integral_constant<bool, (L OP R)> \
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{ \
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static_assert(L OP R, STR); \
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}
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DEFINE_ASSERT_HELPER_CLASS(assert_equal, ==, "values must be equal");
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#define assert_equal(L,R,S) static_assert((assert_equal<decltype((L) + 0), (L) + 0, (R) + 0>::value), S)
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