-// ----------------------------------------------------------------------------
-// $Id$
-// ----------------------------------------------------------------------------
-// Public Domain C Library - http://pdclib.sourceforge.net
-// This code is Public Domain. Use, modify, and redistribute at will.
-// ----------------------------------------------------------------------------
+/* $Id$ */
-void * memcpy( void * restrict s1, const void * restrict s2, size_t n ) { /* TODO */ };
+/* memcpy( void *, const void *, size_t )
-/* Therx code
-{
- void * ret = s1;
- const char * src = (const char *) s2;
- char * dst = (char *) s1;
- for( ; n != 0; n-- )
- {
- *dst++ = *src++;
- }
- return ret;
-}
+ This file is part of the Public Domain C Library (PDCLib).
+ Permission is granted to use, modify, and / or redistribute at will.
*/
-/* PDPC code - unreviewed
-void *memcpy(void *s1, const void *s2, size_t n)
+#include <string.h>
+
+#ifndef REGTEST
+
+void * memcpy( void * _PDCLIB_restrict s1, const void * _PDCLIB_restrict s2, size_t n )
{
- register const unsigned char *f = s2;
- register const unsigned char *fe;
- register unsigned char *t = s1;
-
- fe = f + n;
- while (f != fe)
+ char * dest = (char *) s1;
+ const char * src = (const char *) s2;
+ while ( n-- )
{
- *t++ = *f++;
+ *dest++ = *src++;
}
- return (s1);
+ return s1;
}
-#else
-void *memcpy(void *s1, const void *s2, size_t n)
+
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main( void )
{
- 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)
- {
- 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;
- }
- return (s1);
+ char s[] = "xxxxxxxxxxx";
+ TESTCASE( memcpy( s, abcde, 6 ) == s );
+ TESTCASE( s[4] == 'e' );
+ TESTCASE( s[5] == '\0' );
+ TESTCASE( memcpy( s + 5, abcde, 5 ) == s + 5 );
+ TESTCASE( s[9] == 'e' );
+ TESTCASE( s[10] == 'x' );
+ return TEST_RESULTS;
}
-*/
+#endif