60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
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/***
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*memset.c - set a section of memory to all one byte
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*
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* Copyright (c) 1988-1997, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* contains the memset() routine
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*
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*******************************************************************************/
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//#include <cruntime.h>
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#include <string.h>
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#ifdef _MSC_VER
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#pragma function(memset)
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#endif /* _MSC_VER */
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/***
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*char *memset(dst, val, count) - sets "count" bytes at "dst" to "val"
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*
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*Purpose:
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* Sets the first "count" bytes of the memory starting
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* at "dst" to the character value "val".
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*
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*Entry:
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* void *dst - pointer to memory to fill with val
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* int val - value to put in dst bytes
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* size_t count - number of bytes of dst to fill
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*
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*Exit:
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* returns dst, with filled bytes
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*
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*Exceptions:
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*
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*******************************************************************************/
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void * __cdecl memset (
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void *dst,
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int val,
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size_t count
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)
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{
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void *start = dst;
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#if defined (_M_MRX000) || defined (_M_ALPHA) || defined (_M_PPC)
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{
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extern void RtlFillMemory( void *, size_t count, char );
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RtlFillMemory( dst, count, (char)val );
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}
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#else /* defined (_M_MRX000) || defined (_M_ALPHA) || defined (_M_PPC) */
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while (count--) {
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*(char *)dst = (char)val;
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dst = (char *)dst + 1;
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}
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#endif /* defined (_M_MRX000) || defined (_M_ALPHA) || defined (_M_PPC) */
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return(start);
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}
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