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[thirdparty/gcc.git] / libstdc++-v3 / testsuite / 21_strings / basic_string_view / operations / starts_with / wchar_t.cc

// { dg-do compile { target c++20 } }

// Copyright (C) 2018-2024 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3.  If not see
// <http://www.gnu.org/licenses/>.

// basic_string_view begins_with

#include <string_view>

void
test01()
{
  constexpr wchar_t cstr_dir[] = L"slugs/";
  constexpr std::wstring_view sv_dir(L"slugs/");
  constexpr wchar_t cstr_dir2[] = L"worms/";
  constexpr std::wstring_view sv_dir2(L"worms/");

  constexpr std::wstring_view sv_test(L"slugs/slimy.jpg");

  constexpr auto cstr_in_slugs = sv_test.starts_with(cstr_dir);
  static_assert(cstr_in_slugs);
  constexpr auto sv_in_slugs = sv_test.starts_with(sv_dir);
  static_assert(sv_in_slugs);
  constexpr auto char_s = sv_test.starts_with(L's');
  static_assert(char_s);

  constexpr auto cstr_in_worms = sv_test.starts_with(cstr_dir2);
  static_assert(!cstr_in_worms);
  constexpr auto sv_in_worms = sv_test.starts_with(sv_dir2);
  static_assert(!sv_in_worms);
  constexpr auto char_w = sv_test.starts_with(L'w');
  static_assert(!char_w);
}