smart update: do it by chunks.

[unix-history] / usr / src / usr.bin / window / wwredraw.c

#ifndef lint
static  char *sccsid = "@(#)wwredraw.c  3.4 83/08/16";
#endif

#include "ww.h"
#include "tt.h"

wwredraw()
{
       register i, j;
       register union ww_char *os;

       (*tt.tt_clear)();
       for (i = 0; i < wwnrow; i++) {
               wwtouched[i] = 1;
               os = wwos[i];
               for (j = wwncol; --j >= 0;)
                       (os++)->c_w = ' ';
       }
}