gcc/libstdc++-v3/testsuite/23_containers/set/erasure.cc
Jonathan Wakely 0fe9eaaa08 libstdc++: Improve tests for __cpp_lib_erase_if macro
* testsuite/21_strings/basic_string/erasure.cc: Check for updated
	value of __cpp_lib_erase_if.
	* testsuite/23_containers/deque/erasure.cc: Likewise.
	* testsuite/23_containers/forward_list/erasure.cc: Likewise.
	* testsuite/23_containers/list/erasure.cc: Likewise.
	* testsuite/23_containers/map/erasure.cc: Likewise.
	* testsuite/23_containers/set/erasure.cc: Likewise.
	* testsuite/23_containers/unordered_map/erasure.cc: Likewise.
	* testsuite/23_containers/unordered_set/erasure.cc: Likewise.
	* testsuite/23_containers/vector/erasure.cc: Likewise.
2020-04-22 07:25:02 +01:00

60 lines
1.5 KiB
C++

// { dg-options "-std=gnu++2a" }
// { dg-do run { target c++2a } }
// Copyright (C) 2018-2020 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/>.
#include <set>
#include <testsuite_hooks.h>
#ifndef __cpp_lib_erase_if
# error "Feature-test macro for erase_if missing in <set>"
#elif __cpp_lib_erase_if < 202002
# error "Feature-test macro for erase_if has wrong value in <set>"
#endif
auto is_odd = [](const int i) { return i % 2 != 0; };
void
test01()
{
std::set<int> s{ 10, 11, 12, 14, 15, 17, 18, 19 };
auto num = std::erase_if(s, is_odd);
std::set<int> t{ 10, 12, 14, 18 };
VERIFY( s == t );
VERIFY( num == 4 );
}
void
test02()
{
std::multiset<int> ms{ 20, 21, 22, 22, 23, 23, 24, 25 };
auto num = std::erase_if(ms, is_odd);
std::multiset<int> t{ 20, 22, 22, 24 };
VERIFY( ms == t );
VERIFY( num == 4 );
}
int
main()
{
test01();
test02();
return 0;
}