dereference.cpp 671 Bytes
// Copyright 2021 Peter Dimov
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt

#include <boost/lambda2.hpp>
#include <boost/core/lightweight_test.hpp>
#include <functional>

int main()
{
    using namespace boost::lambda2;

    int x[] = { 1, 2, 3 };

    BOOST_TEST_EQ( (*_1)(x+0), *(x+0) );
    BOOST_TEST_EQ( (*_1)(x+1), *(x+1) );
    BOOST_TEST_EQ( (*_1 + *_2)(x+0, x+1), *(x+0) + *(x+1) );
    BOOST_TEST_EQ( (*_1 + *_2 + *_3)(x+0, x+1, x+2), *(x+0) + *(x+1) + *(x+2) );
    BOOST_TEST_EQ( std::bind(_1 + _2 + _3, *_1, *_2, *_3)(x+0, x+1, x+2), *(x+0) + *(x+1) + *(x+2) );

    return boost::report_errors();
}