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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, c++20
// UNSUPPORTED: GCC-ALWAYS_INLINE-FIXME
// <vector>
// template<class T, class charT>
// requires is-vector-bool-reference<T>
// struct formatter<T, charT>
// template<class FormatContext>
// typename FormatContext::iterator
// format(const T& r, FormatContext& ctx) const;
// Note this tests the basics of this function. It's tested in more detail in
// the format functions test.
#include <cassert>
#include <concepts>
#include <format>
#include <iterator>
#include <vector>
#include "test_format_context.h"
#include "test_macros.h"
#include "make_string.h"
#define SV(S) MAKE_STRING_VIEW(CharT, S)
template <class StringViewT>
void test_format(StringViewT expected, std::vector<bool>::reference arg) {
using CharT = typename StringViewT::value_type;
using String = std::basic_string<CharT>;
using OutIt = std::back_insert_iterator<String>;
using FormatCtxT = std::basic_format_context<OutIt, CharT>;
const std::formatter<std::vector<bool>::reference, CharT> formatter;
String result;
OutIt out = std::back_inserter(result);
FormatCtxT format_ctx = test_format_context_create<OutIt, CharT>(out, std::make_format_args<FormatCtxT>(arg));
formatter.format(arg, format_ctx);
assert(result == expected);
}
template <class CharT>
void test_fmt() {
test_format(SV("true"), std::vector<bool>{true}[0]);
test_format(SV("false"), std::vector<bool>{false}[0]);
}
void test() {
test_fmt<char>();
#ifndef TEST_HAS_NO_WIDE_CHARACTERS
test_fmt<wchar_t>();
#endif
}
int main(int, char**) {
test();
return 0;
}
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