Mercurial > hg > CbC > CbC_gcc
view libstdc++-v3/testsuite/23_containers/multimap/operators/cmp_c++20.cc @ 152:2b5abeee2509
update gcc11
author | anatofuz |
---|---|
date | Mon, 25 May 2020 07:50:57 +0900 |
parents | |
children |
line wrap: on
line source
// Copyright (C) 2020 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 3, or (at your option) // any later version. // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License along // with this library; see the file COPYING3. If not see // <http://www.gnu.org/licenses/>. // { dg-options "-std=gnu++2a" } // { dg-do run { target c++2a } } #include <map> #include <testsuite_hooks.h> void test01() { std::multimap<int, int> c1{ {1,1}, {2,1}, {3,1} }; std::multimap<int, int> c2{ {1,1}, {2,1}, {3,1}, {4,1} }; std::multimap<int, int> c3{ {1,1}, {2,1}, {3,2} }; VERIFY( c1 == c1 ); VERIFY( std::is_eq(c1 <=> c1) ); VERIFY( c1 < c2 ); VERIFY( std::is_lt(c1 <=> c2) ); VERIFY( c1 < c3 ); VERIFY( std::is_lt(c1 <=> c3) ); VERIFY( c2 < c3 ); VERIFY( std::is_lt(c2 <=> c3) ); static_assert( std::totally_ordered<std::multimap<int, int>> ); static_assert( std::three_way_comparable<std::multimap<int, int>, std::strong_ordering> ); static_assert( ! std::three_way_comparable<std::multimap<int, float>, std::strong_ordering> ); static_assert( ! std::three_way_comparable<std::multimap<int, float>, std::weak_ordering> ); static_assert( std::three_way_comparable<std::multimap<int, float>, std::partial_ordering> ); struct E { bool operator==(E) { return true; } }; static_assert( ! std::totally_ordered<std::multimap<int, E>> ); static_assert( ! std::three_way_comparable<E> ); static_assert( ! std::three_way_comparable<std::multimap<int, E>> ); } void test02() { struct W { int value = 0; bool operator==(W rhs) const noexcept { return (value | 1) == (rhs.value | 1); } std::weak_ordering operator<=>(W rhs) const noexcept { return (value | 1) <=> (rhs.value | 1); } }; static_assert( std::totally_ordered<std::multimap<int, W>> ); using P = std::pair<const W, W>; std::multimap<W, W> c1{ P{1,1}, P{2,2}, P{3,3} }, c2{ P{1,0}, P{3,2}, P{3,3} }; static_assert( std::same_as<decltype(c1 <=> c1), std::weak_ordering> ); VERIFY( c1 == c2 ); VERIFY( std::is_eq(c1 <=> c2) ); } void test04() { struct L { int value = 0; bool operator<(L rhs) const noexcept { return value < rhs.value; } }; static_assert( std::totally_ordered<std::multimap<int, L>> ); using P = std::pair<const L, L>; std::multimap<L, L> c{ P{1,1}, P{2,2}, P{3,3} }, d{ P{1,1}, P{2,2}, P{3,4} }; static_assert( std::same_as<decltype(c <=> c), std::weak_ordering> ); VERIFY( std::is_lt(c <=> d) ); } // Associative container iterators are not random access static_assert( ! std::totally_ordered<std::multimap<int, int>::iterator> ); static_assert( ! std::three_way_comparable<std::multimap<int, int>::iterator> ); int main() { test01(); test02(); test04(); }