libc/src/stdio/gpu/fread.cpp

   1 //===-- GPU Implementation of fread ---------------------------------------===//
   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/fread.h"
  10 #include "src/__support/macros/config.h"
  11 #include "src/stdio/gpu/file.h"
  12
  13 #include "hdr/types/FILE.h"
  14
  15 namespace LIBC_NAMESPACE_DECL {
  16
  17 LLVM_LIBC_FUNCTION(size_t, fread,
  18                    (void *__restrict buffer, size_t size, size_t nmemb,
  19                     ::FILE *stream)) {
  20   if (size == 0 || nmemb == 0)
  21     return 0;
  22   auto result = file::read(stream, buffer, size * nmemb);
  23   return result / size;
  24 }
  25
  26 } // namespace LIBC_NAMESPACE_DECL