libc/src/stdlib/gpu/calloc.cpp

   1 //===-- GPU Implementation of calloc --------------------------------------===//
   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/stdlib/calloc.h"
  10
  11 #include "src/__support/GPU/allocator.h"
  12 #include "src/__support/common.h"
  13 #include "src/__support/macros/config.h"
  14 #include "src/string/memory_utils/inline_memset.h"
  15
  16 namespace LIBC_NAMESPACE_DECL {
  17
  18 LLVM_LIBC_FUNCTION(void *, calloc, (size_t num, size_t size)) {
  19   size_t bytes = num * size;
  20   if (bytes == 0)
  21     return nullptr;
  22
  23   void *ptr = gpu::allocate(bytes);
  24   if (!ptr)
  25     return nullptr;
  26
  27   inline_memset(ptr, 0, bytes);
  28   return ptr;
  29 }
  30
  31 } // namespace LIBC_NAMESPACE_DECL