6a54dfbfe5
Also standardize the license comment in several files where it was different from what we normally do.
81 lines
2.1 KiB
C++
81 lines
2.1 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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
|
|
|
|
// <format>
|
|
|
|
// template<class charT, formattable<charT>... Ts>
|
|
// struct formatter<pair-or-tuple<Ts...>, charT>
|
|
|
|
// template<class ParseContext>
|
|
// constexpr typename ParseContext::iterator
|
|
// parse(ParseContext& ctx);
|
|
|
|
// Note this tests the basics of this function. It's tested in more detail in
|
|
// the format functions tests.
|
|
|
|
#include <cassert>
|
|
#include <concepts>
|
|
#include <format>
|
|
#include <memory>
|
|
#include <tuple>
|
|
#include <utility>
|
|
|
|
#include "test_macros.h"
|
|
#include "make_string.h"
|
|
|
|
#define SV(S) MAKE_STRING_VIEW(CharT, S)
|
|
|
|
template <class Arg, class StringViewT>
|
|
constexpr void test(StringViewT fmt, std::size_t offset) {
|
|
using CharT = typename StringViewT::value_type;
|
|
auto parse_ctx = std::basic_format_parse_context<CharT>(fmt);
|
|
std::formatter<Arg, CharT> formatter;
|
|
static_assert(std::semiregular<decltype(formatter)>);
|
|
|
|
std::same_as<typename StringViewT::iterator> auto it = formatter.parse(parse_ctx);
|
|
// std::to_address works around LWG3989 and MSVC STL's iterator debugging mechanism.
|
|
assert(std::to_address(it) == std::to_address(fmt.end()) - offset);
|
|
}
|
|
|
|
template <class CharT, class Arg>
|
|
constexpr void test() {
|
|
test<Arg>(SV(""), 0);
|
|
test<Arg>(SV("42"), 0);
|
|
|
|
test<Arg>(SV("}"), 1);
|
|
test<Arg>(SV("42}"), 1);
|
|
}
|
|
|
|
template <class CharT>
|
|
constexpr void test() {
|
|
test<CharT, std::tuple<int>>();
|
|
test<CharT, std::tuple<int, CharT>>();
|
|
test<CharT, std::pair<int, CharT>>();
|
|
test<CharT, std::tuple<int, CharT, bool>>();
|
|
}
|
|
|
|
constexpr bool test() {
|
|
test<char>();
|
|
#ifndef TEST_HAS_NO_WIDE_CHARACTERS
|
|
test<wchar_t>();
|
|
#endif
|
|
|
|
return true;
|
|
}
|
|
|
|
int main(int, char**) {
|
|
test();
|
|
static_assert(test());
|
|
|
|
return 0;
|
|
}
|