ScanMem8Wrapper.c File Reference

#include "MemLibInternals.h"

Go to the source code of this file.

Functions
VOID *EFIAPI	ScanMem8 (IN CONST VOID *Buffer, IN UINTN Length, IN UINT8 Value)
VOID *EFIAPI	ScanMemN (IN CONST VOID *Buffer, IN UINTN Length, IN UINTN Value)

Detailed Description

ScanMem8() and ScanMemN() implementation.

The following BaseMemoryLib instances contain the same copy of this file:

BaseMemoryLib BaseMemoryLibMmx BaseMemoryLibSse2 BaseMemoryLibRepStr BaseMemoryLibOptDxe BaseMemoryLibOptPei PeiMemoryLib UefiMemoryLib

Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file ScanMem8Wrapper.c.

Function Documentation

ScanMem8()

VOID *EFIAPI ScanMem8	(	IN CONST VOID *	Buffer,
		IN UINTN	Length,
		IN UINT8	Value
	)

Scans a target buffer for an 8-bit value, and returns a pointer to the matching 8-bit value in the target buffer.

This function searches the target buffer specified by Buffer and Length from the lowest address to the highest address for an 8-bit value that matches Value. If a match is found, then a pointer to the matching byte in the target buffer is returned. If no match is found, then NULL is returned. If Length is 0, then NULL is returned.

If Length > 0 and Buffer is NULL, then ASSERT(). If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().

Parameters

Buffer	The pointer to the target buffer to scan.
Length	The number of bytes in Buffer to scan.
Value	The value to search for in the target buffer.

Returns

A pointer to the matching byte in the target buffer or NULL otherwise.

Definition at line 43 of file ScanMem8Wrapper.c.

ScanMemN()

VOID *EFIAPI ScanMemN	(	IN CONST VOID *	Buffer,
		IN UINTN	Length,
		IN UINTN	Value
	)

Scans a target buffer for a UINTN sized value, and returns a pointer to the matching UINTN sized value in the target buffer.

This function searches the target buffer specified by Buffer and Length from the lowest address to the highest address for a UINTN sized value that matches Value. If a match is found, then a pointer to the matching byte in the target buffer is returned. If no match is found, then NULL is returned. If Length is 0, then NULL is returned.

If Length > 0 and Buffer is NULL, then ASSERT(). If Buffer is not aligned on a UINTN boundary, then ASSERT(). If Length is not aligned on a UINTN boundary, then ASSERT(). If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().

Parameters

Buffer	The pointer to the target buffer to scan.
Length	The number of bytes in Buffer to scan.
Value	The value to search for in the target buffer.

Returns

A pointer to the matching byte in the target buffer or NULL otherwise.

Definition at line 82 of file ScanMem8Wrapper.c.