/** @file

  Provide intrinsics within Oniguruma

  (C) Copyright 2015 Hewlett Packard Enterprise Development LP<BR>

  SPDX-License-Identifier: BSD-2-Clause-Patent
**/

#include <Library/BaseMemoryLib.h>

//
// From CryptoPkg/IntrinsicLib
//

/* Copies bytes between buffers */
#pragma function(memcpy)
void * memcpy (void *dest, const void *src, unsigned int count)
{
  return CopyMem (dest, src, (UINTN)count);
}

/* Sets buffers to a specified character */
#pragma function(memset)
void * memset (void *dest, char ch, unsigned int count)
{
  //
  // NOTE: Here we use one base implementation for memset, instead of the direct
  //       optimized SetMem() wrapper. Because the IntrinsicLib has to be built
  //       without whole program optimization option, and there will be some
  //       potential register usage errors when calling other optimized codes.
  //

  //
  // Declare the local variables that actually move the data elements as
  // volatile to prevent the optimizer from replacing this function with
  // the intrinsic memset()
  //
  volatile UINT8  *Pointer;

  Pointer = (UINT8 *)dest;
  while (count-- != 0) {
    *(Pointer++) = ch;
  }

  return dest;
}