| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // UNSUPPORTED: c++03, c++11, c++14, c++17 |
| |
| // <set> |
| |
| // template <class T, class Compare, class Allocator, class Predicate> |
| // typename set<T, Compare, Allocator>::size_type |
| // erase_if(set<T, Compare, Allocator>& c, Predicate pred); |
| |
| #include <set> |
| |
| #include "test_macros.h" |
| #include "test_allocator.h" |
| #include "min_allocator.h" |
| |
| template <class S, class Pred> |
| void test0(S s, Pred p, S expected, std::size_t expected_erased_count) { |
| ASSERT_SAME_TYPE(typename S::size_type, decltype(std::erase_if(s, p))); |
| assert(expected_erased_count == std::erase_if(s, p)); |
| assert(s == expected); |
| } |
| |
| template <typename S> |
| void test() |
| { |
| auto is1 = [](auto v) { return v == 1;}; |
| auto is2 = [](auto v) { return v == 2;}; |
| auto is3 = [](auto v) { return v == 3;}; |
| auto is4 = [](auto v) { return v == 4;}; |
| auto True = [](auto) { return true; }; |
| auto False = [](auto) { return false; }; |
| |
| test0(S(), is1, S(), 0); |
| |
| test0(S({1}), is1, S(), 1); |
| test0(S({1}), is2, S({1}), 0); |
| |
| test0(S({1, 2}), is1, S({2}), 1); |
| test0(S({1, 2}), is2, S({1}), 1); |
| test0(S({1, 2}), is3, S({1, 2}), 0); |
| |
| test0(S({1, 2, 3}), is1, S({2, 3}), 1); |
| test0(S({1, 2, 3}), is2, S({1, 3}), 1); |
| test0(S({1, 2, 3}), is3, S({1, 2}), 1); |
| test0(S({1, 2, 3}), is4, S({1, 2, 3}), 0); |
| |
| test0(S({1, 2, 3}), True, S(), 3); |
| test0(S({1, 2, 3}), False, S({1, 2, 3}), 0); |
| } |
| |
| int main(int, char**) |
| { |
| test<std::set<int>>(); |
| test<std::set<int, std::less<int>, min_allocator<int>>> (); |
| test<std::set<int, std::less<int>, test_allocator<int>>> (); |
| |
| test<std::set<long>>(); |
| test<std::set<double>>(); |
| |
| return 0; |
| } |