160c0d303SJoseph Huber //===-- Implementation of putchar -----------------------------------------===// 260c0d303SJoseph Huber // 360c0d303SJoseph Huber // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 460c0d303SJoseph Huber // See https://llvm.org/LICENSE.txt for license information. 560c0d303SJoseph Huber // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 660c0d303SJoseph Huber // 760c0d303SJoseph Huber //===----------------------------------------------------------------------===// 860c0d303SJoseph Huber 960c0d303SJoseph Huber #include "src/stdio/putchar.h" 1060c0d303SJoseph Huber #include "src/__support/File/file.h" 1160c0d303SJoseph Huber 125aed6d67SMichael Jones #include "hdr/types/FILE.h" 13*5ff3ff33SPetr Hosek #include "src/__support/macros/config.h" 1460c0d303SJoseph Huber #include "src/errno/libc_errno.h" 155aed6d67SMichael Jones #include <stddef.h> 1660c0d303SJoseph Huber 17*5ff3ff33SPetr Hosek namespace LIBC_NAMESPACE_DECL { 1860c0d303SJoseph Huber 1960c0d303SJoseph Huber LLVM_LIBC_FUNCTION(int, putchar, (int c)) { 2060c0d303SJoseph Huber unsigned char uc = static_cast<unsigned char>(c); 2160c0d303SJoseph Huber 22b6bc9d72SGuillaume Chatelet auto result = LIBC_NAMESPACE::stdout->write(&uc, 1); 2360c0d303SJoseph Huber if (result.has_error()) 2460c0d303SJoseph Huber libc_errno = result.error; 2560c0d303SJoseph Huber size_t written = result.value; 2660c0d303SJoseph Huber 2760c0d303SJoseph Huber if (1 != written) { 2860c0d303SJoseph Huber // The stream should be in an error state in this case. 2960c0d303SJoseph Huber return EOF; 3060c0d303SJoseph Huber } 3160c0d303SJoseph Huber return 0; 3260c0d303SJoseph Huber } 3360c0d303SJoseph Huber 34*5ff3ff33SPetr Hosek } // namespace LIBC_NAMESPACE_DECL 35