+++ /dev/null
-/** @file\r
- CompareMem() implementation.\r
-\r
- Copyright (c) 2006, Intel Corporation<BR>\r
- All rights reserved. This program and the accompanying materials\r
- are licensed and made available under the terms and conditions of the BSD License\r
- which accompanies this distribution. The full text of the license may be found at\r
- http://opensource.org/licenses/bsd-license.php\r
-\r
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
-\r
- Module Name: CompareMemWrapper.c\r
-\r
- The following BaseMemoryLib instances share the same version of this file:\r
-\r
- BaseMemoryLib\r
- BaseMemoryLibMmx\r
- BaseMemoryLibSse2\r
- BaseMemoryLibRepStr\r
- PeiMemoryLib\r
- DxeMemoryLib\r
-\r
-**/\r
-\r
-#include "MemLibInternals.h"\r
-\r
-/**\r
- Compares the contents of two buffers.\r
-\r
- This function compares Length bytes of SourceBuffer to Length bytes of DestinationBuffer.\r
- If all Length bytes of the two buffers are identical, then 0 is returned. Otherwise, the\r
- value returned is the first mismatched byte in SourceBuffer subtracted from the first\r
- mismatched byte in DestinationBuffer.\r
- If Length > 0 and DestinationBuffer is NULL and Length > 0, then ASSERT().\r
- If Length > 0 and SourceBuffer is NULL and Length > 0, then ASSERT().\r
- If Length is greater than (MAX_ADDRESS - DestinationBuffer + 1), then ASSERT(). \r
- If Length is greater than (MAX_ADDRESS - SourceBuffer + 1), then ASSERT(). \r
-\r
-\r
- @param DestinationBuffer Pointer to the destination buffer to compare.\r
- @param SourceBuffer Pointer to the source buffer to compare.\r
- @param Length Number of bytes to compare.\r
-\r
- @return 0 All Length bytes of the two buffers are identical.\r
- @retval Non-zero The first mismatched byte in SourceBuffer subtracted from the first\r
- mismatched byte in DestinationBuffer.\r
-\r
-**/\r
-INTN\r
-EFIAPI\r
-CompareMem (\r
- IN CONST VOID *DestinationBuffer,\r
- IN CONST VOID *SourceBuffer,\r
- IN UINTN Length\r
- )\r
-{\r
- if (Length == 0) {\r
- return 0;\r
- }\r
- ASSERT (DestinationBuffer != NULL);\r
- ASSERT (SourceBuffer != NULL);\r
- ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)DestinationBuffer));\r
- ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)SourceBuffer));\r
-\r
- return InternalMemCompareMem (DestinationBuffer, SourceBuffer, Length);\r
-}\r