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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/invoke.hpp>
#define STATIC_ASSERT(...) static_assert(__VA_ARGS__, #__VA_ARGS__)
#define BOOST_TEST_EQ(x, y) STATIC_ASSERT((x) == (y))
struct F
{
constexpr int operator()() const
{
return -1;
}
constexpr int operator()( int x1 ) const noexcept
{
return x1;
}
constexpr int operator()( int x1, int x2 ) const
{
return 10*x1+x2;
}
constexpr int operator()( int x1, int x2, int x3 ) const noexcept
{
return 100*x1 + 10*x2 + x3;
}
};
int main()
{
{
BOOST_TEST_EQ( boost::compat::invoke( F() ), -1 );
BOOST_TEST_EQ( boost::compat::invoke( F(), 1 ), 1 );
BOOST_TEST_EQ( boost::compat::invoke( F(), 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke( F(), 1, 2, 3 ), 123 );
}
{
constexpr F f = {};
BOOST_TEST_EQ( boost::compat::invoke( f ), -1 );
BOOST_TEST_EQ( boost::compat::invoke( f, 1 ), 1 );
BOOST_TEST_EQ( boost::compat::invoke( f, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke( f, 1, 2, 3 ), 123 );
}
}
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