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 "src/errno/libc_errno.h" 13 #include <stdio.h> 14 15 namespace LIBC_NAMESPACE { 16 17 LLVM_LIBC_FUNCTION(int, setvbuf, 18 (::FILE *__restrict stream, char *__restrict buf, int type, 19 size_t size)) { 20 int err = reinterpret_cast<LIBC_NAMESPACE::File *>(stream)->set_buffer( 21 buf, size, type); 22 if (err != 0) 23 libc_errno = err; 24 return err; 25 } 26 27 } // namespace LIBC_NAMESPACE 28