ArmPkg/Library/CompilerIntrinsicsLib/memcpy_ms.c

   1 //------------------------------------------------------------------------------
   2 //
   3 // Copyright (c) 2017, Pete Batard. All rights reserved.<BR>
   4 //
   5 // SPDX-License-Identifier: BSD-2-Clause-Patent
   6 //
   7 //------------------------------------------------------------------------------
   8
   9 #if defined(_M_ARM64)
  10 typedef unsigned __int64  size_t;
  11 #else
  12 typedef unsigned __int32  size_t;
  13 #endif
  14
  15 void* memcpy(void *, const void *, size_t);
  16 #pragma intrinsic(memcpy)
  17 #pragma function(memcpy)
  18 void* memcpy(void *dest, const void *src, size_t n)
  19 {
  20   unsigned char *d = dest;
  21   unsigned char const *s = src;
  22
  23   while (n--)
  24     *d++ = *s++;
  25
  26   return dest;
  27 }