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//===----------------------------------------------------------------------===//
// 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: libcpp-no-concepts
// UNSUPPORTED: libcpp-has-no-localization
// UNSUPPORTED: libcpp-has-no-incomplete-format
// TODO FMT Evaluate gcc-11 status
// UNSUPPORTED: gcc-11
// REQUIRES: locale.en_US.UTF-8
// REQUIRES: locale.fr_FR.UTF-8
// <format>
// std::locale locale();
#include <format>
#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 lifetype 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);
}
}
void test() {
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
#ifndef _LIBCPP_HAS_NO_CHAR8_T
test<std::back_insert_iterator<std::basic_string<char8_t>>, char8_t>();
#endif
#ifndef TEST_HAS_NO_UNICODE_CHARS
test<std::back_insert_iterator<std::basic_string<char16_t>>, char16_t>();
test<std::back_insert_iterator<std::basic_string<char32_t>>, char32_t>();
#endif
}
int main(int, char**) {
test();
return 0;
}
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