e3f154d873
This change requires quite a number of changes in the tests; this is not code I expect people to use in the wild. So I don't expect breakage for users. Implements: - P2905R2 Runtime format strings, as a Defect Report
47 lines
1.5 KiB
C++
47 lines
1.5 KiB
C++
//===----------------------------------------------------------------------===//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
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// UNSUPPORTED: no-filesystem
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// UNSUPPORTED: GCC-ALWAYS_INLINE-FIXME
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// XFAIL: availability-fp_to_chars-missing
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// <print>
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// void vprint_unicode(string_view fmt, format_args args);
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// Testing this properly is quite hard; the function unconditionally
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// writes to stdout. When stdout is redirected to a file it is no longer
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// considered a terminal. The function is a small wrapper around
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//
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// void vprint_unicode(FILE* stream, string_view fmt, format_args args);
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//
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// So do minimal tests for this function and rely on the FILE* overload
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// to do more testing.
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//
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// The testing is based on the testing for std::cout.
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// RUN: %{build}
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// RUN: echo -n "1234 一二三四 true 0x0" > %t.expected
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// RUN: %{exec} %t.exe > %t.actual
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// RUN: diff -u %t.actual %t.expected
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#include <print>
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int main(int, char**) {
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// The data is passed as-is so it does not depend on the encoding of the input.
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int i = 1234;
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const char* s = "一二三四";
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bool b = true;
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nullptr_t p = nullptr;
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std::vprint_unicode("{} {} ", std::make_format_args(i, s));
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std::vprint_unicode("{} {}", std::make_format_args(b, p));
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return 0;
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}
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