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Add memccpy{}

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git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4990 7fd9a85b-ad96-42d3-883c-3090e2eb8679
This commit is contained in:
patacongo
2012-07-29 14:50:02 +00:00
parent 1b70837411
commit b8fef0cc97
6 changed files with 123 additions and 18 deletions
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nuttx/lib/string/lib_memcpy.c
+16 -12
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@@ -1,8 +1,8 @@
/************************************************************
/****************************************************************************
* lib/string/lib_memcpy.c
*
* Copyright (C) 2007, 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -31,29 +31,33 @@
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************/
****************************************************************************/
/************************************************************
/****************************************************************************
* Compilation Switches
************************************************************/
****************************************************************************/
/************************************************************
/****************************************************************************
* Included Files
************************************************************/
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <string.h>
/************************************************************
/****************************************************************************
* Global Functions
************************************************************/
****************************************************************************/
/****************************************************************************
* Name: memcpy
****************************************************************************/
#ifndef CONFIG_ARCH_MEMCPY
void *memcpy(void *dest, const void *src, size_t n)
FAR void *memcpy(FAR void *dest, FAR const void *src, size_t n)
{
unsigned char *pout = (unsigned char*)dest;
unsigned char *pin = (unsigned char*)src;
FAR unsigned char *pout = (FAR unsigned char*)dest;
FAR unsigned char *pin = (FAR unsigned char*)src;
while (n-- > 0) *pout++ = *pin++;
return dest;
}