decNumberIsQNaN  3123 src/decNumber/decNumber.c     if (decNumberIsQNaN(dn)) return DEC_CLASS_QNAN;
decNumberIsQNaN  5784 src/decNumber/decNumber.c          else if (decNumberIsSNaN(lhs) && decNumberIsQNaN(rhs)) result=-1;
decNumberIsQNaN  5785 src/decNumber/decNumber.c          else if (decNumberIsQNaN(lhs) && decNumberIsSNaN(rhs)) result=+1;