1 /* A minor test-program for memmove.
29 /* Test moves of 0..MAX bytes; overlapping-src-higher,
30    overlapping-src-lower and non-overlapping.  The overlap varies with
31    1..N where N is the size moved.  This means an order of MAX**2
32    iterations.  The size of an octet may seem appropriate for MAX and
34    making this 256 added 90s to the test-run (2GHz P4) while 64 (4s) was
36 #define MAX 64  macro
51 /* A safe target-independent memmove.  */
58     while (n-- > 0)  in mymemmove()
64       while (n-- > 0)  in mymemmove()
65 	*--dest = *--src;  in mymemmove()
70    pass -fno-builtin-memmove.  */
94 fill (unsigned char dest[MAX*3])  in fill()
97   for (i = 0; i < MAX*3; i++)  in fill()
98     dest[i] = (10 + i) % MAX;  in fill()
110   unsigned char from_test[MAX*3];  in main()
111   unsigned char to_test[MAX*3];  in main()
112   unsigned char from_known[MAX*3];  in main()
113   unsigned char to_known[MAX*3];  in main()
115   /* Non-overlap.  */  in main()
116   for (i = 0; i < MAX; i++)  in main()
122       xmemmove (to_test + MAX, 1 + from_test + MAX, i);  in main()
126       mymemmove (to_known + MAX, 1 + from_known + MAX, i);  in main()
131 	  DEBUGP ("memmove failed non-overlap test for %lu bytes\n", (unsigned long) i);  in main()
135   /* Overlap-from-before.  */  in main()
136   for (i = 0; i < MAX; i++)  in main()
142 	  xmemmove (to_test + MAX * 2 - i, to_test + MAX * 2 - i - j, i);  in main()
145 	  mymemmove (to_known + MAX * 2 - i, to_known + MAX * 2 - i - j, i);  in main()
157   /* Overlap-from-after.  */  in main()
158   for (i = 0; i < MAX; i++)  in main()
164 	  xmemmove (to_test + MAX, to_test + MAX + j, i);  in main()
167 	  mymemmove (to_known + MAX, to_known + MAX + j, i);  in main()