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//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// <string>
// template<class charT, class traits, class Allocator>
// bool operator!=(const basic_string<charT,traits,Allocator>& lhs, const charT* rhs); // constexpr since C++20
#include <string>
#include <cassert>
#include "test_macros.h"
#include "min_allocator.h"
template <class S>
TEST_CONSTEXPR_CXX20 void
test(const S& lhs, const typename S::value_type* rhs, bool x)
{
assert((lhs != rhs) == x);
}
template <class S>
TEST_CONSTEXPR_CXX20 void test_string() {
test(S(""), "", false);
test(S(""), "abcde", true);
test(S(""), "abcdefghij", true);
test(S(""), "abcdefghijklmnopqrst", true);
test(S("abcde"), "", true);
test(S("abcde"), "abcde", false);
test(S("abcde"), "abcdefghij", true);
test(S("abcde"), "abcdefghijklmnopqrst", true);
test(S("abcdefghij"), "", true);
test(S("abcdefghij"), "abcde", true);
test(S("abcdefghij"), "abcdefghij", false);
test(S("abcdefghij"), "abcdefghijklmnopqrst", true);
test(S("abcdefghijklmnopqrst"), "", true);
test(S("abcdefghijklmnopqrst"), "abcde", true);
test(S("abcdefghijklmnopqrst"), "abcdefghij", true);
test(S("abcdefghijklmnopqrst"), "abcdefghijklmnopqrst", false);
}
TEST_CONSTEXPR_CXX20 bool test() {
test_string<std::string>();
#if TEST_STD_VER >= 11
test_string<std::basic_string<char, std::char_traits<char>, min_allocator<char>>>();
#endif
return true;
}
int main(int, char**)
{
test();
#if TEST_STD_VER > 17
static_assert(test());
#endif
return 0;
}
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