| //===----------------------------------------------------------------------===// |
| // 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-incomplete-format |
| |
| // <format> |
| |
| // basic_format_arg<basic_format_context> arg(size_t id) const; |
| |
| #include <format> |
| #include <cassert> |
| |
| #include "test_basic_format_arg.h" |
| #include "test_format_context.h" |
| #include "test_macros.h" |
| #include "make_string.h" |
| |
| template <class OutIt, class CharT> |
| void test() { |
| std::basic_string<CharT> string = MAKE_STRING(CharT, "string"); |
| auto store = std::make_format_args<std::basic_format_context<OutIt, CharT>>( |
| true, CharT('a'), 42, string); |
| std::basic_format_args args = store; |
| |
| std::basic_string<CharT> output; |
| const std::basic_format_context context = |
| test_format_context_create(OutIt{output}, args); |
| LIBCPP_ASSERT(args.__size() == 4); |
| for (size_t i = 0, e = args.__size(); i != e; ++i) { |
| assert(context.arg(i)); |
| } |
| assert(!context.arg(args.__size())); |
| |
| 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))); |
| } |
| |
| 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 |
| #ifndef _LIBCPP_HAS_NO_CHAR8_T |
| test<std::back_insert_iterator<std::basic_string<char8_t>>, char8_t>(); |
| #endif |
| #ifndef _LIBCPP_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 |
| |
| return 0; |
| } |