xref: /llvm-project-15.0.7/libcxx/test/std/strings/basic.string/string.ends_with/ends_with.ptr.pass.cpp (revision 425620cc)

//===----------------------------------------------------------------------===//
//
// 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

// <string>

// constexpr bool ends_with(const CharT *x) const;

#include <string>
#include <cassert>

#include "test_macros.h"

constexpr bool test() {
  {
    typedef std::string S;
    const char *s = "abcde";

    S   s0;
    S   s1  { s + 4, 1 };
    S   s2  { s + 3, 2 };
//  S   s3  { s + 2, 3 };
//  S   s4  { s + 1, 4 };
//  S   s5  { s,     5 };
    S  sNot { "def", 3 };

    LIBCPP_ASSERT_NOEXCEPT(s0.ends_with(""));

    assert ( s0.ends_with(""));
    assert (!s0.ends_with("e"));

    assert ( s1.ends_with(""));
    assert ( s1.ends_with("e"));
    assert (!s1.ends_with("de"));
    assert (!s1.ends_with("cde"));
    assert (!s1.ends_with("bcde"));
    assert (!s1.ends_with("abcde"));
    assert (!s1.ends_with("def"));

    assert ( s2.ends_with(""));
    assert ( s2.ends_with("e"));
    assert ( s2.ends_with("de"));
    assert (!s2.ends_with("cde"));
    assert (!s2.ends_with("bcde"));
    assert (!s2.ends_with("abcde"));
    assert (!s2.ends_with("def"));

    assert ( sNot.ends_with(""));
    assert (!sNot.ends_with("e"));
    assert (!sNot.ends_with("de"));
    assert (!sNot.ends_with("cde"));
    assert (!sNot.ends_with("bcde"));
    assert (!sNot.ends_with("abcde"));
    assert ( sNot.ends_with("def"));
  }

  return true;
}

int main(int, char**) {
  test();
  static_assert(test());

  return 0;
}