| //===----------------------------------------------------------------------===// |
| // 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 |
| // UNSUPPORTED: no-localization |
| // UNSUPPORTED: GCC-ALWAYS_INLINE-FIXME |
| |
| // REQUIRES: locale.en_US.UTF-8 |
| // REQUIRES: locale.fr_FR.UTF-8 |
| |
| // <format> |
| |
| // std::locale locale(); |
| |
| #include <format> |
| #include <iterator> |
| #include <cassert> |
| |
| #include "make_string.h" |
| #include "platform_support.h" // locale name macros |
| #include "test_basic_format_arg.h" |
| #include "test_format_context.h" |
| #include "test_macros.h" |
| |
| template <class OutIt, class CharT> |
| void test() { |
| std::locale en_US{LOCALE_en_US_UTF_8}; |
| std::locale fr_FR{LOCALE_fr_FR_UTF_8}; |
| std::basic_string<CharT> string = MAKE_STRING(CharT, "string"); |
| // The type of the object is an exposition only type. The temporary is needed |
| // to extend the lifetime of the object since args stores a pointer to the |
| // data in this object. |
| auto format_arg_store = std::make_format_args<std::basic_format_context<OutIt, CharT>>(true, CharT('a'), 42, string); |
| std::basic_format_args args = format_arg_store; |
| |
| { |
| std::basic_string<CharT> output; |
| OutIt out_it{output}; |
| std::basic_format_context context = test_format_context_create(out_it, args, en_US); |
| assert(args.__size() == 4); |
| assert(test_basic_format_arg(context.arg(0), true)); |
| assert(test_basic_format_arg(context.arg(1), CharT('a'))); |
| assert(test_basic_format_arg(context.arg(2), 42)); |
| assert(test_basic_format_arg(context.arg(3), |
| std::basic_string_view<CharT>(string))); |
| |
| context.out() = CharT('a'); |
| assert(output.size() == 1); |
| assert(output.front() == CharT('a')); |
| |
| assert(context.locale() != fr_FR); |
| assert(context.locale() == en_US); |
| } |
| |
| { |
| std::basic_string<CharT> output; |
| OutIt out_it{output}; |
| std::basic_format_context context = test_format_context_create(out_it, args, fr_FR); |
| assert(args.__size() == 4); |
| assert(test_basic_format_arg(context.arg(0), true)); |
| assert(test_basic_format_arg(context.arg(1), CharT('a'))); |
| assert(test_basic_format_arg(context.arg(2), 42)); |
| assert(test_basic_format_arg(context.arg(3), |
| std::basic_string_view<CharT>(string))); |
| |
| context.out() = CharT('a'); |
| assert(output.size() == 1); |
| assert(output.front() == CharT('a')); |
| |
| assert(context.locale() == fr_FR); |
| assert(context.locale() != en_US); |
| } |
| } |
| |
| int main(int, char**) { |
| test<std::back_insert_iterator<std::basic_string<char>>, char>(); |
| #ifndef TEST_HAS_NO_WIDE_CHARACTERS |
| test<std::back_insert_iterator<std::basic_string<wchar_t>>, wchar_t>(); |
| #endif |
| |
| return 0; |
| } |