1a1be5d69SJoseph Huber //===-- GPU implementation of getchar -------------------------------------===// 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/getchar.h" 10a1be5d69SJoseph Huber #include "file.h" 115ff3ff33SPetr Hosek #include "src/__support/macros/config.h" 12a1be5d69SJoseph Huber 13*c63112a9Slntue #include "hdr/stdio_macros.h" // for EOF and stdin. 14a1be5d69SJoseph Huber 155ff3ff33SPetr Hosek namespace LIBC_NAMESPACE_DECL { 16a1be5d69SJoseph Huber 17a1be5d69SJoseph Huber LLVM_LIBC_FUNCTION(int, getchar, ()) { 18a1be5d69SJoseph Huber unsigned char c; 19a1be5d69SJoseph Huber size_t r = file::read(stdin, &c, 1); 20a1be5d69SJoseph Huber 21a1be5d69SJoseph Huber if (r != 1) 22a1be5d69SJoseph Huber return EOF; 23a1be5d69SJoseph Huber return c; 24a1be5d69SJoseph Huber } 25a1be5d69SJoseph Huber 265ff3ff33SPetr Hosek } // namespace LIBC_NAMESPACE_DECL 27