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