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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/invoke.hpp>
#include <boost/config.hpp>
#include <boost/config/workaround.hpp>
#define STATIC_ASSERT(...) static_assert(__VA_ARGS__, #__VA_ARGS__)
#define BOOST_TEST_EQ(x, y) STATIC_ASSERT((x) == (y))
struct X
{
constexpr int f0() const
{
return -1;
}
constexpr int f1( int x1 ) const noexcept
{
return x1;
}
constexpr int f2( int x1, int x2 ) const
{
return 10*x1+x2;
}
constexpr int f3( int x1, int x2, int x3 ) const noexcept
{
return 100*x1 + 10*x2 + x3;
}
};
struct Y: public X
{
};
int main()
{
{
BOOST_TEST_EQ( boost::compat::invoke( &X::f0, X() ), -1 );
BOOST_TEST_EQ( boost::compat::invoke( &X::f1, X(), 1 ), 1 );
BOOST_TEST_EQ( boost::compat::invoke( &X::f2, X(), 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke( &X::f3, X(), 1, 2, 3 ), 123 );
}
{
BOOST_TEST_EQ( boost::compat::invoke( &X::f0, Y() ), -1 );
BOOST_TEST_EQ( boost::compat::invoke( &X::f1, Y(), 1 ), 1 );
BOOST_TEST_EQ( boost::compat::invoke( &X::f2, Y(), 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke( &X::f3, Y(), 1, 2, 3 ), 123 );
}
{
constexpr X x = {};
BOOST_TEST_EQ( boost::compat::invoke( &X::f0, x ), -1 );
BOOST_TEST_EQ( boost::compat::invoke( &X::f1, x, 1 ), 1 );
BOOST_TEST_EQ( boost::compat::invoke( &X::f2, x, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke( &X::f3, x, 1, 2, 3 ), 123 );
BOOST_TEST_EQ( boost::compat::invoke( &X::f0, &x ), -1 );
BOOST_TEST_EQ( boost::compat::invoke( &X::f1, &x, 1 ), 1 );
BOOST_TEST_EQ( boost::compat::invoke( &X::f2, &x, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke( &X::f3, &x, 1, 2, 3 ), 123 );
}
#if !BOOST_WORKAROUND(BOOST_MSVC, < 1910)
{
constexpr Y y = {};
BOOST_TEST_EQ( boost::compat::invoke( &X::f0, y ), -1 );
BOOST_TEST_EQ( boost::compat::invoke( &X::f1, y, 1 ), 1 );
BOOST_TEST_EQ( boost::compat::invoke( &X::f2, y, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke( &X::f3, y, 1, 2, 3 ), 123 );
BOOST_TEST_EQ( boost::compat::invoke( &X::f0, &y ), -1 );
BOOST_TEST_EQ( boost::compat::invoke( &X::f1, &y, 1 ), 1 );
BOOST_TEST_EQ( boost::compat::invoke( &X::f2, &y, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke( &X::f3, &y, 1, 2, 3 ), 123 );
}
#endif
}
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