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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
#if defined(__GNUC__) && __GNUC__ == 7
# pragma GCC diagnostic ignored "-Wnoexcept-type"
#endif
#include <boost/compat/mem_fn.hpp>
#include <boost/core/lightweight_test.hpp>
#include <functional>
struct X
{
int f0()
{
return -1;
}
int f1( int x1 ) noexcept
{
return x1;
}
int f2( int x1, int x2 ) const
{
return 10*x1+x2;
}
int f3( int x1, int x2, int x3 ) const noexcept
{
return 100*x1 + 10*x2 + x3;
}
};
struct Y: public virtual X
{
};
int main()
{
{
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f0 )( X() ), -1 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f1 )( X(), 1 ), 1 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f2 )( X(), 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f3 )( X(), 1, 2, 3 ), 123 );
}
{
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f0 )( Y() ), -1 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f1 )( Y(), 1 ), 1 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f2 )( Y(), 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f3 )( Y(), 1, 2, 3 ), 123 );
}
{
X x;
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f0 )( x ), -1 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f1 )( x, 1 ), 1 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f2 )( x, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f3 )( x, 1, 2, 3 ), 123 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f0 )( &x ), -1 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f1 )( &x, 1 ), 1 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f2 )( &x, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f3 )( &x, 1, 2, 3 ), 123 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f0 )( std::ref(x) ), -1 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f1 )( std::ref(x), 1 ), 1 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f2 )( std::ref(x), 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f3 )( std::ref(x), 1, 2, 3 ), 123 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f2 )( std::cref(x), 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f3 )( std::cref(x), 1, 2, 3 ), 123 );
}
{
Y y;
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f0 )( y ), -1 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f1 )( y, 1 ), 1 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f2 )( y, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f3 )( y, 1, 2, 3 ), 123 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f0 )( &y ), -1 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f1 )( &y, 1 ), 1 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f2 )( &y, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f3 )( &y, 1, 2, 3 ), 123 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f0 )( std::ref(y) ), -1 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f1 )( std::ref(y), 1 ), 1 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f2 )( std::ref(y), 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f3 )( std::ref(y), 1, 2, 3 ), 123 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f2 )( std::cref(y), 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f3 )( std::cref(y), 1, 2, 3 ), 123 );
}
{
X const x = {};
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f2 )( x, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f3 )( x, 1, 2, 3 ), 123 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f2 )( &x, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f3 )( &x, 1, 2, 3 ), 123 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f2 )( std::ref(x), 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f3 )( std::ref(x), 1, 2, 3 ), 123 );
}
{
Y const y = {};
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f2 )( y, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f3 )( y, 1, 2, 3 ), 123 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f2 )( &y, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f3 )( &y, 1, 2, 3 ), 123 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f2 )( std::ref(y), 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::mem_fn( &X::f3 )( std::ref(y), 1, 2, 3 ), 123 );
}
return boost::report_errors();
}
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