================ @@ -0,0 +1,33 @@ +//===-- 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_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); ---------------- PiJoules wrote:
I don't see anything in cppref mentioning this, but is there any expected behavior if `size * nmemb` overflows? Perhaps we could use a "multiply and check for overflow" function here? https://github.com/llvm/llvm-project/pull/168931 _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
