var2ulen         4007 src/decNumber/decNumber.c   Int   var2ulen;                  // logical length (units)
var2ulen         4211 src/decNumber/decNumber.c     var2ulen=var1units;                 // rhs logical length (units)
var2ulen         4258 src/decNumber/decNumber.c         var2ulen--;                     // shift down
var2ulen         4275 src/decNumber/decNumber.c         if (var1units<var2ulen) break;       // var1 too low for subtract
var2ulen         4276 src/decNumber/decNumber.c         if (var1units==var2ulen) {           // unit-by-unit compare needed
var2ulen         4314 src/decNumber/decNumber.c         shift=var2ulen-var2units;
var2ulen         4353 src/decNumber/decNumber.c       var2ulen--;                            // shift down