-/* ----------------------------------------------------------------------------
- * $Id$
- * ----------------------------------------------------------------------------
- * Public Domain C Library - http://pdclib.sourceforge.net
- * This code is Public Domain. Use, modify, and redistribute at will.
- * --------------------------------------------------------------------------*/
+/* $Id$ */
-#include <__size_t.h>
+/* Release $Name$ */
-void * memcpy( void * restrict dest, const void * restrict src, size_t n )
-{
- const char * src_p = (const char *) src;
- char * dest_p = (char *) dest;
- while ( n-- )
- {
- *dest_p++ = *src_p++;
- }
- return dest;
-}
+/* memcpy( void *, const void *, size_t )
+
+ This file is part of the Public Domain C Library (PDCLib).
+ Permission is granted to use, modify, and / or redistribute at will.
+*/
-/* TODO: This is code from PDPC, optimizing for word access.
+#include <string.h>
-void *memcpy(void *s1, const void *s2, size_t n)
+void * memcpy( void * _PDCLIB_restrict s1, const void * _PDCLIB_restrict s2, size_t n )
{
- register unsigned int *p = (unsigned int *)s1;
- register unsigned int *cs2 = (unsigned int *)s2;
- register unsigned int *endi;
-
- endi = (unsigned int *)((char *)p + (n & ~0x03));
- while (p != endi)
- {
- *p++ = *cs2++;
- }
- switch (n & 0x03)
+ char * dest = (char *) s1;
+ const char * src = (const char *) s2;
+ while ( n-- )
{
- case 0:
- break;
- case 1:
- *(char *)p = *(char *)cs2;
- break;
- case 2:
- *(char *)p = *(char *)cs2;
- p = (unsigned int *)((char *)p + 1);
- cs2 = (unsigned int *)((char *)cs2 + 1);
- *(char *)p = *(char *)cs2;
- break;
- case 3:
- *(char *)p = *(char *)cs2;
- p = (unsigned int *)((char *)p + 1);
- cs2 = (unsigned int *)((char *)cs2 + 1);
- *(char *)p = *(char *)cs2;
- p = (unsigned int *)((char *)p + 1);
- cs2 = (unsigned int *)((char *)cs2 + 1);
- *(char *)p = *(char *)cs2;
- break;
+ *dest++ = *src++;
}
- return (s1);
+ return s1;
}
-*/