coerce to a real number
Major Section:  ACL2-BUILT-INS

Realfix simply returns any real number argument unchanged, returning 0 on a non-real argument. Also see nfix, see ifix, see rfix, and see fix for analogous functions that coerce to a natural number, an integer, a rational, and a number, respectively.

Realfix has a guard of t.

To see the ACL2 definition of this function, see pf.