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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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
// <string>
// constexpr bool contains(const CharT *x) const;
#include <string>
#include <cassert>
#include "test_macros.h"
constexpr bool test()
{
using S = std::string;
const char* s = "abcde";
S s0;
S s1 {s + 4, 1};
S s3 {s + 2, 3};
S sNot {"xyz", 3};
assert(s0.contains(""));
assert(!s0.contains("e"));
assert( s1.contains(""));
assert(!s1.contains("d"));
assert( s1.contains("e"));
assert(!s1.contains("de"));
assert(!s1.contains("cd"));
assert(!s1.contains("cde"));
assert(!s1.contains("bcde"));
assert(!s1.contains("abcde"));
assert(!s1.contains("xyz"));
assert( s3.contains(""));
assert( s3.contains("d"));
assert( s3.contains("e"));
assert( s3.contains("de"));
assert( s3.contains("cd"));
assert(!s3.contains("ce"));
assert( s3.contains("cde"));
assert(!s3.contains("edc"));
assert(!s3.contains("bcde"));
assert(!s3.contains("abcde"));
assert(!s3.contains("xyz"));
assert( sNot.contains(""));
assert(!sNot.contains("d"));
assert(!sNot.contains("e"));
assert(!sNot.contains("de"));
assert(!sNot.contains("cd"));
assert(!sNot.contains("cde"));
assert(!sNot.contains("bcde"));
assert(!sNot.contains("abcde"));
assert( sNot.contains("xyz"));
assert(!sNot.contains("zyx"));
return true;
}
int main(int, char**)
{
test();
static_assert(test());
return 0;
}
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