| // Copyright (C) 2019-2023 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/>. |
| |
| // { dg-do run { target c++17 } } |
| // { dg-require-string-conversions "" } |
| |
| #include <charconv> |
| #include <string_view> |
| #include <testsuite_hooks.h> |
| |
| template<typename C> |
| bool |
| check_to_chars(C val) |
| { |
| using std::string_view; |
| |
| char buf1[32], buf2[32], buf3[32]; |
| std::to_chars_result r1 = std::to_chars(buf1, buf1+sizeof(buf1), val); |
| if (r1.ec != std::errc{}) |
| return false; |
| std::to_chars_result r2 = std::to_chars(buf2, buf2+sizeof(buf2), val, 10); |
| if (r2.ec != std::errc{}) |
| return false; |
| if (string_view(buf1, r1.ptr - buf1) != string_view(buf2, r2.ptr - buf2)) |
| return false; |
| std::to_chars_result r3 = std::to_chars(buf3, buf3+sizeof(buf3), (long)val); |
| if (string_view(buf1, r1.ptr - buf1) != string_view(buf3, r3.ptr - buf3)) |
| return false; |
| return true; |
| } |
| |
| void |
| test01() |
| { |
| VERIFY( check_to_chars(u'\x21') ); |
| VERIFY( check_to_chars(U'\x21') ); |
| VERIFY( check_to_chars(L'\x21') ); |
| } |
| |
| int main() |
| { |
| test01(); |
| } |