round            1953 src/number.c           int exp, sign, est, tc1, tc2, tc3, digs, point, round;
round            1961 src/number.c           round = !Scm_OddP(f);
round            2004 src/number.c               if (round) {
round            2045 src/number.c               if (round) {
round            2067 src/number.c                       if ((round && tc3 <= 0) || (!round && tc3 < 0)) {