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memmove.c
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C/C++ Source or Header
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1994-05-04
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374 b
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26 lines
/* $Id: memmove.c,v 1.3 93/05/05 21:18:14 sjg Exp $ */
#include "stdh.h"
void *
memmove(dap, sap, n)
void *dap;
const void *sap;
register size_t n;
{
register char *dp = dap, *sp = (void*) sap;
if (n <= 0)
;
else if (dp < sp)
do *dp++ = *sp++; while (--n > 0);
else if (dp > sp) {
dp += n;
sp += n;
do *--dp = *--sp; while (--n > 0);
}
return dap;
}