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Annotation of 42BSD/usr.lib/lib2648/line.c, revision 1.1

1.1     ! root        1: /*     line.c  4.1     83/03/09        */
        !             2: /*
        !             3:  * line: draw a line from point 1 to point 2.
        !             4:  */
        !             5: 
        !             6: #include "2648.h"
        !             7: 
        !             8: line(x1, y1, x2, y2)
        !             9: int x1, y1, x2, y2;
        !            10: {
        !            11: #ifdef TRACE
        !            12:        if (trace)
        !            13:                fprintf(trace, "line((%d, %d), (%d, %d)),", x1, y1, x2, y2);
        !            14: #endif
        !            15:        if (x1==_penx && y1==_peny) {
        !            16:                /*
        !            17:                 * Get around a bug in the HP terminal where one point
        !            18:                 * lines don't get drawn more than once.
        !            19:                 */
        !            20:                move(x1, y1+1);
        !            21:                sync();
        !            22:        }
        !            23:        move(x1, y1);
        !            24:        draw(x2, y2);
        !            25: }

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