| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 3 | // See https://llvm.org/LICENSE.txt for license information. |
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| 4 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 5 | // |
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| 6 | //===----------------------------------------------------------------------===// |
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| 7 | |
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| 8 | // UNSUPPORTED: c++03, c++11, c++14, c++17, c++20 |
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| 9 | |
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| 10 | // UNSUPPORTED: GCC-ALWAYS_INLINE-FIXME |
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| 11 | |
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| 12 | // <format> |
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| 13 | |
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| 14 | // template<class charT, formattable<charT>... Ts> |
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| 15 | // struct formatter<pair-or-tuple<Ts...>, charT> |
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| 16 | |
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| 17 | // constexpr void constexpr void set_brackets(basic_string_view<charT> opening, |
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| 18 | // basic_string_view<charT> closing) noexcept; |
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| 19 | |
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| 20 | // Note this tests the basics of this function. It's tested in more detail in |
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| 21 | // the format functions tests. |
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| 22 | |
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| 23 | #include <format> |
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| 24 | #include <tuple> |
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| 25 | #include <utility> |
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| 26 | |
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| 27 | #include "make_string.h" |
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| 28 | |
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| 29 | #define SV(S) MAKE_STRING_VIEW(CharT, S) |
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| 30 | |
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| 31 | template <class CharT, class Arg> |
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| 32 | constexpr void test() { |
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| 33 | std::formatter<Arg, CharT> formatter; |
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| 34 | formatter.set_brackets(SV("open" ), SV("close" )); |
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| 35 | // Note the SV macro may throw, so can't use it. |
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| 36 | static_assert(noexcept(formatter.set_brackets(std::basic_string_view<CharT>{}, std::basic_string_view<CharT>{}))); |
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| 37 | |
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| 38 | // Note there is no direct way to validate this function modified the object. |
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| 39 | } |
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| 40 | |
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| 41 | template <class CharT> |
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| 42 | constexpr void test() { |
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| 43 | test<CharT, std::tuple<int>>(); |
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| 44 | test<CharT, std::tuple<int, CharT>>(); |
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| 45 | test<CharT, std::pair<int, CharT>>(); |
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| 46 | test<CharT, std::tuple<int, CharT, bool>>(); |
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| 47 | } |
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| 48 | |
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| 49 | constexpr bool test() { |
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| 50 | test<char>(); |
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| 51 | #ifndef TEST_HAS_NO_WIDE_CHARACTERS |
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| 52 | test<wchar_t>(); |
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| 53 | #endif |
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| 54 | |
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| 55 | return true; |
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| 56 | } |
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| 57 | |
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| 58 | int main(int, char**) { |
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| 59 | test(); |
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| 60 | static_assert(test()); |
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| 61 | |
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| 62 | return 0; |
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| 63 | } |
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| 64 | |
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