| // { dg-options "-std=gnu++2a" } |
| // { dg-do compile { target c++2a } } |
| |
| // Copyright (C) 2018-2021 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 char cstr_dir[] = "slugs/"; |
| constexpr std::string_view sv_dir("slugs/"); |
| constexpr char cstr_dir2[] = "worms/"; |
| constexpr std::string_view sv_dir2("worms/"); |
| |
| constexpr std::string_view sv_test("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('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('w'); |
| static_assert(!char_w); |
| } |
