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Annotation of 43BSD/usr.lib/lib2648/bitcopy.c, revision 1.1

1.1     ! root        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) 4/26/85";
        !             9: #endif not lint
        !            10: 
        !            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: }

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