1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // UNSUPPORTED: c++03, c++11, c++14, c++17, c++20 10 // UNSUPPORTED: no-filesystem 11 // UNSUPPORTED: libcpp-has-no-unicode 12 // UNSUPPORTED: GCC-ALWAYS_INLINE-FIXME 13 14 // XFAIL: availability-fp_to_chars-missing 15 16 // <print> 17 18 // void vprint_unicode(string_view fmt, format_args args); 19 20 // Testing this properly is quite hard; the function unconditionally 21 // writes to stdout. When stdout is redirected to a file it is no longer 22 // considered a terminal. The function is a small wrapper around 23 // 24 // void vprint_unicode(FILE* stream, string_view fmt, format_args args); 25 // 26 // So do minimal tests for this function and rely on the FILE* overload 27 // to do more testing. 28 // 29 // The testing is based on the testing for std::cout. 30 31 // RUN: %{build} 32 // RUN: echo -n "1234 一二三四 true 0x0" > %t.expected 33 // RUN: %{exec} %t.exe > %t.actual 34 // RUN: diff -u %t.actual %t.expected 35 36 #include <print> 37 38 int main(int, char**) { 39 // The data is passed as-is so it does not depend on the encoding of the input. 40 int i = 1234; 41 const char* s = "一二三四"; 42 bool b = true; 43 nullptr_t p = nullptr; 44 std::vprint_unicode("{} {} ", std::make_format_args(i, s)); 45 std::vprint_unicode("{} {}", std::make_format_args(b, p)); 46 47 return 0; 48 } 49