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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_view>
// constexpr bool contains(const CharT *x) const;
#include <string_view>
#include <cassert>
#include "test_macros.h"
constexpr bool test() {
using SV = std::string_view;
const char* s = "abcde";
SV sv0;
SV sv1{s + 4, 1};
SV sv3{s + 2, 3};
SV svNot{"xyz", 3};
assert(sv0.contains(""));
assert(!sv0.contains("e"));
assert(sv1.contains(""));
assert(!sv1.contains("d"));
assert(sv1.contains("e"));
assert(!sv1.contains("de"));
assert(!sv1.contains("cd"));
assert(!sv1.contains("cde"));
assert(!sv1.contains("bcde"));
assert(!sv1.contains("abcde"));
assert(!sv1.contains("xyz"));
assert(sv3.contains(""));
assert(sv3.contains("d"));
assert(sv3.contains("e"));
assert(sv3.contains("de"));
assert(sv3.contains("cd"));
assert(!sv3.contains("ce"));
assert(sv3.contains("cde"));
assert(!sv3.contains("edc"));
assert(!sv3.contains("bcde"));
assert(!sv3.contains("abcde"));
assert(!sv3.contains("xyz"));
assert(svNot.contains(""));
assert(!svNot.contains("d"));
assert(!svNot.contains("e"));
assert(!svNot.contains("de"));
assert(!svNot.contains("cd"));
assert(!svNot.contains("cde"));
assert(!svNot.contains("bcde"));
assert(!svNot.contains("abcde"));
assert(svNot.contains("xyz"));
assert(!svNot.contains("zyx"));
return true;
}
int main(int, char**) {
test();
static_assert(test());
return 0;
}
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