1a1be5d69SJoseph Huber //===-- Implementation of fgetc -------------------------------------------===// 2a1be5d69SJoseph Huber // 3a1be5d69SJoseph Huber // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4a1be5d69SJoseph Huber // See https://llvm.org/LICENSE.txt for license information. 5a1be5d69SJoseph Huber // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6a1be5d69SJoseph Huber // 7a1be5d69SJoseph Huber //===----------------------------------------------------------------------===// 8a1be5d69SJoseph Huber 9a1be5d69SJoseph Huber #include "src/stdio/fgetc.h" 10a1be5d69SJoseph Huber #include "src/__support/File/file.h" 11a1be5d69SJoseph Huber 125aed6d67SMichael Jones #include "hdr/types/FILE.h" 13*5ff3ff33SPetr Hosek #include "src/__support/macros/config.h" 14a1be5d69SJoseph Huber #include "src/errno/libc_errno.h" 155aed6d67SMichael Jones #include <stddef.h> 16a1be5d69SJoseph Huber 17*5ff3ff33SPetr Hosek namespace LIBC_NAMESPACE_DECL { 18a1be5d69SJoseph Huber 19a1be5d69SJoseph Huber LLVM_LIBC_FUNCTION(int, fgetc, (::FILE * stream)) { 20a1be5d69SJoseph Huber unsigned char c; 21b6bc9d72SGuillaume Chatelet auto result = reinterpret_cast<LIBC_NAMESPACE::File *>(stream)->read(&c, 1); 22a1be5d69SJoseph Huber size_t r = result.value; 23a1be5d69SJoseph Huber if (result.has_error()) 24a1be5d69SJoseph Huber libc_errno = result.error; 25a1be5d69SJoseph Huber 26a1be5d69SJoseph Huber if (r != 1) 27a1be5d69SJoseph Huber return EOF; 28a1be5d69SJoseph Huber return c; 29a1be5d69SJoseph Huber } 30a1be5d69SJoseph Huber 31*5ff3ff33SPetr Hosek } // namespace LIBC_NAMESPACE_DECL 32