COMPSIG           807 src/decNumber/decNumber.c   decCompareOp(res, lhs, rhs, set, COMPSIG, &status);
COMPSIG          5776 src/decNumber/decNumber.c        else if (op==COMPSIG)            // treat qNaN as sNaN
COMPSIG          5818 src/decNumber/decNumber.c     if (op==COMPARE || op==COMPSIG ||op==COMPTOTAL) { // returning signum