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Annotation of 42BSD/ingres/source/gutil/bitcnt.c, revision 1.1.1.1

1.1       root        1: # include      <sccs.h>
                      2: 
                      3: SCCSID(@(#)bitcnt.c    7.1     2/5/81)
                      4: 
                      5: 
                      6: /*
                      7: **     Count the number of 1's in the integer var. As long
                      8: **     as left shift is zero fill this routine is machine
                      9: **     independent.
                     10: */
                     11: 
                     12: bitcnt(var)
                     13: register int   var;
                     14: {
                     15:        register int    i, ret;
                     16: 
                     17:        for (ret = 0, i = 1; i; i <<= 1)
                     18:                if (i & var)
                     19:                        ret++;
                     20: 
                     21:        return (ret);
                     22: }

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