1 //===----------------------------------------------------------------------===// 2 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 3 // See https://llvm.org/LICENSE.txt for license information. 4 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 5 // 6 //===----------------------------------------------------------------------===// 7 8 // UNSUPPORTED: c++03, c++11, c++14, c++17, c++20 9 // UNSUPPORTED: no-filesystem 10 // UNSUPPORTED: executor-has-no-bash 11 // UNSUPPORTED: GCC-ALWAYS_INLINE-FIXME 12 13 // XFAIL: availability-fp_to_chars-missing 14 15 // <print> 16 17 // template<class... Args> 18 // void print(format_string<Args...> fmt, 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 // template<class... Args> 25 // void print(FILE* stream, format_string<Args...> fmt, Args&&... args); 26 // 27 // So do minimal tests for this function and rely on the FILE* overload 28 // to do more testing. 29 // 30 // The testing is based on the testing for std::cout. 31 32 // TODO PRINT Use lit builtin echo 33 34 // FILE_DEPENDENCIES: echo.sh 35 // RUN: %{build} 36 // RUN: %{exec} bash echo.sh -n "1234 一二三四 true 0x0" > %t.expected 37 // RUN: %{exec} "%t.exe" > %t.actual 38 // RUN: diff -u %t.actual %t.expected 39 40 #include <print> 41 42 int main(int, char**) { 43 // The data is passed as-is so it does not depend on the encoding of the input. 44 std::print("{} {} ", 1234, "一二三四"); 45 std::print("{} {}", true, nullptr); 46 47 return 0; 48 } 49