'mod' function query casts to float, returns wrong modulus for large ints

mod function query uses DualFloatFunction. This eventualy does a conversion

 (float)value 

converting an integer (32bit) into a float which has a 24bit mantissa ,resulting in a loss of precision.

This means that for integers > 2^24 this returns an incorrect modulus due to this loss of precision.

Should we use integer only, or perhaps cast to double (so then create a DualDoubleFunction) which has a 52bit mantissa, so can convert int to double without loss of precision?

This issue may also affect the other function queries?