| 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 | // <format> |
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| 11 | |
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| 12 | // template<ranges::input_range R, class charT> |
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| 13 | // requires (K == range_format::string || K == range_format::debug_string) |
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| 14 | // struct range-default-formatter<K, R, charT> |
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| 15 | |
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| 16 | // template<class FormatContext> |
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| 17 | // typename FormatContext::iterator |
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| 18 | // format(const T& ref, FormatContext& ctx) const; |
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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 test. |
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| 22 | |
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| 23 | #include <cassert> |
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| 24 | #include <concepts> |
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| 25 | #include <format> |
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| 26 | |
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| 27 | #include "format.functions.tests.h" |
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| 28 | #include "test_format_context.h" |
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| 29 | #include "test_macros.h" |
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| 30 | |
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| 31 | template <class StringViewT, class ArgT> |
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| 32 | void test_format(StringViewT expected, ArgT arg) { |
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| 33 | using CharT = typename StringViewT::value_type; |
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| 34 | using String = std::basic_string<CharT>; |
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| 35 | using OutIt = std::back_insert_iterator<String>; |
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| 36 | using FormatCtxT = std::basic_format_context<OutIt, CharT>; |
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| 37 | |
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| 38 | std::formatter<ArgT, CharT> formatter; |
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| 39 | |
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| 40 | String result; |
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| 41 | OutIt out = std::back_inserter(result); |
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| 42 | FormatCtxT format_ctx = test_format_context_create<OutIt, CharT>(out, std::make_format_args<FormatCtxT>(arg)); |
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| 43 | formatter.format(arg, format_ctx); |
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| 44 | assert(result == expected); |
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| 45 | } |
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| 46 | |
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| 47 | template <class CharT> |
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| 48 | void test_fmt() { |
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| 49 | test_format(SV("hello" ), test_range_format_string<std::basic_string<CharT>>{STR("hello" )}); |
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| 50 | test_format(SV("hello" ), test_range_format_debug_string<std::basic_string<CharT>>{STR("hello" )}); |
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| 51 | } |
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| 52 | |
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| 53 | void test() { |
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| 54 | test_fmt<char>(); |
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| 55 | #ifndef TEST_HAS_NO_WIDE_CHARACTERS |
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| 56 | test_fmt<wchar_t>(); |
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| 57 | #endif |
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| 58 | } |
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| 59 | |
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| 60 | int main(int, char**) { |
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| 61 | test(); |
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| 62 | |
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| 63 | return 0; |
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| 64 | } |
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| 65 | |
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