//===-- Implementation of putchar -----------------------------------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// #include "src/stdio/putchar.h" #include "src/__support/File/file.h" #include "hdr/types/FILE.h" #include "src/__support/macros/config.h" #include "src/errno/libc_errno.h" #include namespace LIBC_NAMESPACE_DECL { LLVM_LIBC_FUNCTION(int, putchar, (int c)) { unsigned char uc = static_cast(c); auto result = LIBC_NAMESPACE::stdout->write(&uc, 1); if (result.has_error()) libc_errno = result.error; size_t written = result.value; if (1 != written) { // The stream should be in an error state in this case. return EOF; } return 0; } } // namespace LIBC_NAMESPACE_DECL