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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
// <string>
// template <class charT, class traits, class Allocator, class Predicate>
// void erase_if(basic_string<charT, traits, Allocator>& c, Predicate pred);
#include <string>
#include "test_macros.h"
#include "test_allocator.h"
#include "min_allocator.h"
template <class S, class Pred>
test0(S s, Pred p, S expected)
ASSERT_SAME_TYPE(void, decltype(std::erase_if(s, p)));
std::erase_if(s, p);
assert(s == expected);
template <typename S>
void test()
auto isA = [](auto ch) { return ch == 'a';};
auto isB = [](auto ch) { return ch == 'b';};
auto isC = [](auto ch) { return ch == 'c';};
auto isD = [](auto ch) { return ch == 'd';};
auto True = [](auto) { return true; };
auto False = [](auto) { return false; };
test0(S(""), isA, S(""));
test0(S("a"), isA, S(""));
test0(S("a"), isB, S("a"));
test0(S("ab"), isA, S("b"));
test0(S("ab"), isB, S("a"));
test0(S("ab"), isC, S("ab"));
test0(S("aa"), isA, S(""));
test0(S("aa"), isC, S("aa"));
test0(S("abc"), isA, S("bc"));
test0(S("abc"), isB, S("ac"));
test0(S("abc"), isC, S("ab"));
test0(S("abc"), isD, S("abc"));
test0(S("aab"), isA, S("b"));
test0(S("aab"), isB, S("aa"));
test0(S("aab"), isC, S("aab"));
test0(S("abb"), isA, S("bb"));
test0(S("abb"), isB, S("a"));
test0(S("abb"), isC, S("abb"));
test0(S("aaa"), isA, S(""));
test0(S("aaa"), isB, S("aaa"));
test0(S("aba"), False, S("aba"));
test0(S("aba"), True, S(""));
int main(int, char**)
test<std::basic_string<char, std::char_traits<char>, min_allocator<char>>> ();
test<std::basic_string<char, std::char_traits<char>, test_allocator<char>>> ();
return 0;