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61d96e53 DF |
1 | /* |
2 | * Copyright (c) 1980 Regents of the University of California. | |
3 | * All rights reserved. The Berkeley software License Agreement | |
4 | * specifies the terms and conditions for redistribution. | |
5 | */ | |
6 | ||
7 | #ifndef lint | |
8 | static char sccsid[] = "@(#)bitcopy.c 5.1 (Berkeley) %G%"; | |
9 | #endif not lint | |
10 | ||
94d991d9 RC |
11 | /* |
12 | * Copy from msrc to mdest. | |
13 | * This is done as it is because it would be much slower to do it | |
14 | * a bit at a time. | |
15 | */ | |
16 | ||
17 | #include "bit.h" | |
18 | ||
19 | bitcopy(mdest, msrc, rows, cols) | |
20 | bitmat mdest, msrc; | |
21 | int rows, cols; | |
22 | { | |
23 | register int size = ((cols + 7) >> 3) * rows; | |
24 | register char *p, *q; | |
25 | ||
26 | for (p = &mdest[size], q = &msrc[size]; p>=mdest; ) | |
27 | *--p = *--q; | |
28 | } |