| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | // UNSUPPORTED: c++03, c++11, c++14, c++17, c++20 |
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| 10 | // UNSUPPORTED: no-filesystem |
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| 11 | // UNSUPPORTED: executor-has-no-bash |
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| 12 | // UNSUPPORTED: GCC-ALWAYS_INLINE-FIXME |
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| 13 | |
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| 14 | // FIXME PRINT How to test println on Windows? |
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| 15 | // XFAIL: msvc, target={{.+}}-windows-gnu |
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| 16 | |
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| 17 | // XFAIL: availability-fp_to_chars-missing |
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| 18 | |
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| 19 | // <print> |
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| 20 | |
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| 21 | // void println(); |
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| 22 | |
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| 23 | // Testing this properly is quite hard; the function unconditionally |
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| 24 | // writes to stdout. When stdout is redirected to a file it is no longer |
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| 25 | // considered a terminal. The function is a small wrapper around |
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| 26 | // |
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| 27 | // template<class... Args> |
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| 28 | // void println(FILE* stream, format_string<Args...> fmt, Args&&... args); |
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| 29 | // |
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| 30 | // So do minimal tests for this function and rely on the FILE* overload |
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| 31 | // to do more testing. |
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| 32 | // |
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| 33 | // The testing is based on the testing for std::cout. |
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| 34 | |
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| 35 | // TODO PRINT Use lit builtin echo |
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| 36 | |
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| 37 | // FILE_DEPENDENCIES: echo.sh |
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| 38 | // RUN: %{build} |
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| 39 | // RUN: %{exec} bash echo.sh -ne "println blank line test: \n" > %t.expected |
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| 40 | // RUN: %{exec} "%t.exe" > %t.actual |
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| 41 | // RUN: diff -u %t.actual %t.expected |
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| 42 | |
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| 43 | #include <print> |
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| 44 | |
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| 45 | int main(int, char**) { |
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| 46 | // On some configurations the `diff -u` test fails if we print a single blank line character `\n`, so we print some text first. |
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| 47 | std::print("println blank line test: " ); |
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| 48 | std::println(); |
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| 49 | |
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| 50 | return 0; |
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| 51 | } |
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| 52 | |
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