libcxx/test/std/strings/string.view/string.view.template/ends_with.char.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // UNSUPPORTED: c++03, c++11, c++14, c++17
  10
  11 // <string_view>
  12
  13 //   constexpr bool ends_with(charT x) const noexcept;
  14
  15 #include <string_view>
  16 #include <cassert>
  17
  18 #include "test_macros.h"
  19 #include "constexpr_char_traits.h"
  20
  21 int main(int, char**) {
  22   {
  23     typedef std::string_view SV;
  24     SV sv1{};
  25     SV sv2{"abcde", 5};
  26
  27     ASSERT_NOEXCEPT(sv1.ends_with('e'));
  28
  29     assert(!sv1.ends_with('e'));
  30     assert(!sv1.ends_with('x'));
  31     assert(sv2.ends_with('e'));
  32     assert(!sv2.ends_with('x'));
  33   }
  34
  35 #if TEST_STD_VER > 11
  36   {
  37     typedef std::basic_string_view<char, constexpr_char_traits<char>> SV;
  38     constexpr SV sv1{};
  39     constexpr SV sv2{"abcde", 5};
  40     static_assert(!sv1.ends_with('e'), "");
  41     static_assert(!sv1.ends_with('x'), "");
  42     static_assert(sv2.ends_with('e'), "");
  43     static_assert(!sv2.ends_with('x'), "");
  44   }
  45 #endif
  46
  47   return 0;
  48 }