33 lines · cpp
1//===-- Implementation of fwrite ------------------------------------------===//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-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/stdio/fwrite.h"10#include "src/__support/File/file.h"11 12#include "hdr/types/FILE.h"13#include "src/__support/libc_errno.h"14#include "src/__support/macros/config.h"15#include <stddef.h>16 17namespace LIBC_NAMESPACE_DECL {18 19LLVM_LIBC_FUNCTION(size_t, fwrite,20 (const void *__restrict buffer, size_t size, size_t nmemb,21 ::FILE *stream)) {22 if (size == 0 || nmemb == 0)23 return 0;24 auto result = reinterpret_cast<LIBC_NAMESPACE::File *>(stream)->write(25 buffer, size * nmemb);26 if (result.has_error())27 libc_errno = result.error;28 29 return result.value / size;30}31 32} // namespace LIBC_NAMESPACE_DECL33