1*71db0c75SAndroid Build Coastguard Worker //===-- GPU implementation of getchar -------------------------------------===// 2*71db0c75SAndroid Build Coastguard Worker // 3*71db0c75SAndroid Build Coastguard Worker // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*71db0c75SAndroid Build Coastguard Worker // See https://llvm.org/LICENSE.txt for license information. 5*71db0c75SAndroid Build Coastguard Worker // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*71db0c75SAndroid Build Coastguard Worker // 7*71db0c75SAndroid Build Coastguard Worker //===----------------------------------------------------------------------===// 8*71db0c75SAndroid Build Coastguard Worker 9*71db0c75SAndroid Build Coastguard Worker #include "src/stdio/getchar.h" 10*71db0c75SAndroid Build Coastguard Worker #include "file.h" 11*71db0c75SAndroid Build Coastguard Worker #include "src/__support/macros/config.h" 12*71db0c75SAndroid Build Coastguard Worker 13*71db0c75SAndroid Build Coastguard Worker #include "hdr/stdio_macros.h" // for EOF and stdin. 14*71db0c75SAndroid Build Coastguard Worker 15*71db0c75SAndroid Build Coastguard Worker namespace LIBC_NAMESPACE_DECL { 16*71db0c75SAndroid Build Coastguard Worker 17*71db0c75SAndroid Build Coastguard Worker LLVM_LIBC_FUNCTION(int, getchar, ()) { 18*71db0c75SAndroid Build Coastguard Worker unsigned char c; 19*71db0c75SAndroid Build Coastguard Worker size_t r = file::read(stdin, &c, 1); 20*71db0c75SAndroid Build Coastguard Worker 21*71db0c75SAndroid Build Coastguard Worker if (r != 1) 22*71db0c75SAndroid Build Coastguard Worker return EOF; 23*71db0c75SAndroid Build Coastguard Worker return c; 24*71db0c75SAndroid Build Coastguard Worker } 25*71db0c75SAndroid Build Coastguard Worker 26*71db0c75SAndroid Build Coastguard Worker } // namespace LIBC_NAMESPACE_DECL 27