1 //===-- Implementation of setvbuf -----------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "src/stdio/setvbuf.h" 10 #include "src/__support/File/file.h" 11 12 #include "hdr/types/FILE.h" 13 #include "src/__support/macros/config.h" 14 #include "src/errno/libc_errno.h" 15 #include <stddef.h> 16 17 namespace LIBC_NAMESPACE_DECL { 18 19 LLVM_LIBC_FUNCTION(int, setvbuf, 20 (::FILE *__restrict stream, char *__restrict buf, int type, 21 size_t size)) { 22 int err = reinterpret_cast<LIBC_NAMESPACE::File *>(stream)->set_buffer( 23 buf, size, type); 24 if (err != 0) 25 libc_errno = err; 26 return err; 27 } 28 29 } // namespace LIBC_NAMESPACE_DECL 30