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57 lines
1.5 KiB
C++
57 lines
1.5 KiB
C++
// Copyright 2024 Peter Dimov
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// Distributed under the Boost Software License, Version 1.0.
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// https://www.boost.org/LICENSE_1_0.txt
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#include <boost/compat/invoke.hpp>
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#include <boost/config.hpp>
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#include <boost/config/workaround.hpp>
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#define STATIC_ASSERT(...) static_assert((__VA_ARGS__), #__VA_ARGS__)
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#define BOOST_TEST_EQ(x, y) STATIC_ASSERT((x) == (y))
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struct X
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{
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int m = -1;
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};
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struct Y: public X
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{
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};
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int main()
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{
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{
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constexpr X x = {};
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BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::m, X() ), -1 );
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BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::m, x ), -1 );
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BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::m, &x ), -1 );
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#if !defined(BOOST_NO_CXX14_CONSTEXPR)
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STATIC_ASSERT( boost::compat::invoke_r<void>( &X::m, X() ), true );
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STATIC_ASSERT( boost::compat::invoke_r<void>( &X::m, x ), true );
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STATIC_ASSERT( boost::compat::invoke_r<void>( &X::m, &x ), true );
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#endif
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}
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#if !BOOST_WORKAROUND(BOOST_MSVC, >= 1920 && BOOST_MSVC < 1950)
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{
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constexpr Y y = {};
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BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::m, Y() ), -1 );
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BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::m, y ), -1 );
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BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::m, &y ), -1 );
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#if !defined(BOOST_NO_CXX14_CONSTEXPR)
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STATIC_ASSERT( boost::compat::invoke_r<void>( &X::m, Y() ), true );
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STATIC_ASSERT( boost::compat::invoke_r<void>( &X::m, y ), true );
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STATIC_ASSERT( boost::compat::invoke_r<void>( &X::m, &y ), true );
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#endif
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}
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#endif
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}
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