1*71db0c75SAndroid Build Coastguard Worker //===-- Implementation of fgetc -------------------------------------------===// 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/fgetc.h" 10*71db0c75SAndroid Build Coastguard Worker #include "src/__support/File/file.h" 11*71db0c75SAndroid Build Coastguard Worker 12*71db0c75SAndroid Build Coastguard Worker #include "hdr/types/FILE.h" 13*71db0c75SAndroid Build Coastguard Worker #include "src/__support/macros/config.h" 14*71db0c75SAndroid Build Coastguard Worker #include "src/errno/libc_errno.h" 15*71db0c75SAndroid Build Coastguard Worker #include <stddef.h> 16*71db0c75SAndroid Build Coastguard Worker 17*71db0c75SAndroid Build Coastguard Worker namespace LIBC_NAMESPACE_DECL { 18*71db0c75SAndroid Build Coastguard Worker 19*71db0c75SAndroid Build Coastguard Worker LLVM_LIBC_FUNCTION(int, fgetc, (::FILE * stream)) { 20*71db0c75SAndroid Build Coastguard Worker unsigned char c; 21*71db0c75SAndroid Build Coastguard Worker auto result = reinterpret_cast<LIBC_NAMESPACE::File *>(stream)->read(&c, 1); 22*71db0c75SAndroid Build Coastguard Worker size_t r = result.value; 23*71db0c75SAndroid Build Coastguard Worker if (result.has_error()) 24*71db0c75SAndroid Build Coastguard Worker libc_errno = result.error; 25*71db0c75SAndroid Build Coastguard Worker 26*71db0c75SAndroid Build Coastguard Worker if (r != 1) 27*71db0c75SAndroid Build Coastguard Worker return EOF; 28*71db0c75SAndroid Build Coastguard Worker return c; 29*71db0c75SAndroid Build Coastguard Worker } 30*71db0c75SAndroid Build Coastguard Worker 31*71db0c75SAndroid Build Coastguard Worker } // namespace LIBC_NAMESPACE_DECL 32