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// Copyright 2024 Peter Dimov
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include <boost/compat/bind_back.hpp>
#include <boost/config.hpp>
#include <boost/config/workaround.hpp>
#include <boost/config/pragma_message.hpp>
#if defined(BOOST_NO_CXX14_CONSTEXPR)
BOOST_PRAGMA_MESSAGE( "Test skipped because BOOST_NO_CXX14_CONSTEXPR is defined" )
int main() {}
#else
#define STATIC_ASSERT(...) static_assert(__VA_ARGS__, #__VA_ARGS__)
#define BOOST_TEST_EQ(x, y) STATIC_ASSERT((x) == (y))
struct X
{
int m = -1;
};
struct Y: public X
{
};
int main()
{
{
BOOST_TEST_EQ( boost::compat::bind_back( &X::m, X() )(), -1 );
}
{
constexpr X x = {};
BOOST_TEST_EQ( boost::compat::bind_back( &X::m, x )(), -1 );
BOOST_TEST_EQ( boost::compat::bind_back( &X::m, &x )(), -1 );
}
#if !BOOST_WORKAROUND(BOOST_MSVC, >= 1920 && BOOST_MSVC < 1950)
{
BOOST_TEST_EQ( boost::compat::bind_back( &X::m, Y() )(), -1 );
}
{
constexpr Y y = {};
BOOST_TEST_EQ( boost::compat::bind_back( &X::m, y )(), -1 );
BOOST_TEST_EQ( boost::compat::bind_back( &X::m, &y )(), -1 );
}
#endif
}
#endif
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