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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
// <format>
// template<class charT, formattable<charT>... Ts>
// struct formatter<pair-or-tuple<Ts...>, charT>
// constexpr void constexpr void set_brackets(basic_string_view<charT> opening,
// basic_string_view<charT> closing) noexcept;
// Note this tests the basics of this function. It's tested in more detail in
// the format functions tests.
#include <format>
#include <tuple>
#include <utility>
#include "make_string.h"
#define SV(S) MAKE_STRING_VIEW(CharT, S)
template <class CharT, class Arg>
constexpr void test() {
std::formatter<Arg, CharT> formatter;
formatter.set_brackets(SV("open"), SV("close"));
// Note the SV macro may throw, so can't use it.
static_assert(noexcept(formatter.set_brackets(std::basic_string_view<CharT>{}, std::basic_string_view<CharT>{})));
// Note there is no direct way to validate this function modified the object.
}
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;
}
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