38 lines · cpp
1//===-- Implementation of fputs -------------------------------------------===//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/fputs.h"10#include "src/__support/CPP/string_view.h"11#include "src/__support/File/file.h"12 13#include "hdr/types/FILE.h"14#include "src/__support/libc_errno.h"15#include "src/__support/macros/config.h"16#include <stddef.h>17 18namespace LIBC_NAMESPACE_DECL {19 20LLVM_LIBC_FUNCTION(int, fputs,21 (const char *__restrict str, ::FILE *__restrict stream)) {22 cpp::string_view str_view(str);23 24 auto result = reinterpret_cast<LIBC_NAMESPACE::File *>(stream)->write(25 str, str_view.size());26 if (result.has_error())27 libc_errno = result.error;28 size_t written = result.value;29 30 if (str_view.size() != written) {31 // The stream should be in an error state in this case.32 return EOF;33 }34 return 0;35}36 37} // namespace LIBC_NAMESPACE_DECL38