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//===-- Implementation of fread for baremetal -------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "src/stdio/fread.h"
#include "hdr/types/FILE.h"
#include "src/__support/common.h"
#include "src/__support/libc_assert.h"
#include "src/__support/libc_errno.h"
#include "src/__support/macros/config.h"
#include "src/stdio/baremetal/file_internal.h"
#include <stddef.h>
namespace LIBC_NAMESPACE_DECL {
LLVM_LIBC_FUNCTION(size_t, fread,
(void *__restrict buffer, size_t size, size_t nmemb,
::FILE *stream)) {
if (size == 0 || nmemb == 0)
return 0;
auto result =
read_internal(reinterpret_cast<char *>(buffer), size * nmemb, stream);
if (result.has_error())
libc_errno = result.error;
LIBC_ASSERT(result.value % size == 0 && "result not multiple of size");
return result.value / size;
}
} // namespace LIBC_NAMESPACE_DECL
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