MdePkg: Replace BSD License with BSD+Patent License

[mirror_edk2.git] / MdePkg / Library / BaseMemoryLibOptPei / IsZeroBufferWrapper.c

/** @file\r
  Implementation of IsZeroBuffer function.\r
\r
  The following BaseMemoryLib instances contain the same copy of this file:\r
\r
    BaseMemoryLib\r
    BaseMemoryLibMmx\r
    BaseMemoryLibSse2\r
    BaseMemoryLibRepStr\r
    BaseMemoryLibOptDxe\r
    BaseMemoryLibOptPei\r
    PeiMemoryLib\r
    UefiMemoryLib\r
\r
  Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include "MemLibInternals.h"\r
\r
/**\r
  Checks if the contents of a buffer are all zeros.\r
\r
  This function checks whether the contents of a buffer are all zeros. If the\r
  contents are all zeros, return TRUE. Otherwise, return FALSE.\r
\r
  If Length > 0 and Buffer is NULL, then ASSERT().\r
  If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
\r
  @param  Buffer      The pointer to the buffer to be checked.\r
  @param  Length      The size of the buffer (in bytes) to be checked.\r
\r
  @retval TRUE        Contents of the buffer are all zeros.\r
  @retval FALSE       Contents of the buffer are not all zeros.\r
\r
**/\r
BOOLEAN\r
EFIAPI\r
IsZeroBuffer (\r
  IN CONST VOID  *Buffer,\r
  IN UINTN       Length\r
  )\r
{\r
  ASSERT (!(Buffer == NULL && Length > 0));\r
  ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)Buffer));\r
  return InternalMemIsZeroBuffer (Buffer, Length);\r
}\r