// Copyright 2021 Peter Dimov // Distributed under the Boost Software License, Version 1.0. // https://www.boost.org/LICENSE_1_0.txt #include #include #include int main() { using namespace boost::lambda2; int x1 = 1, x2 = 2, y1 = 1, y2 = 2; BOOST_TEST_EQ( (_1++)(x1), y1++ ); BOOST_TEST_EQ( (++_1)(x1), ++y1 ); BOOST_TEST_EQ( (_1--)(x1), y1-- ); BOOST_TEST_EQ( (--_1)(x1), --y1 ); BOOST_TEST_EQ( (_1++ + _2++)(x1, x2), y1++ + y2++ ); BOOST_TEST_EQ( (++_1 + ++_2)(x1, x2), ++y1 + ++y2 ); BOOST_TEST_EQ( (_1-- + _2--)(x1, x2), y1-- + y2-- ); BOOST_TEST_EQ( (--_1 + --_2)(x1, x2), --y1 + --y2 ); BOOST_TEST_EQ( std::bind(_1 + _2, _1++, _2++)(x1, x2), y1++ + y2++ ); BOOST_TEST_EQ( std::bind(_1 + _2, ++_1, ++_2)(x1, x2), ++y1 + ++y2 ); BOOST_TEST_EQ( std::bind(_1 + _2, _1--, _2--)(x1, x2), y1-- + y2-- ); BOOST_TEST_EQ( std::bind(_1 + _2, --_1, --_2)(x1, x2), --y1 + --y2 ); return boost::report_errors(); }