From: Lyle Johnson <lyle@...>
Date: 2004-01-28T22:44:54+09:00
Subject: Re: float types

elathan@phys.uoa.gr wrote:

> Actually I want to check the arguments' types before calling the 
> appopriate (overloaded) C++ function. So, I want a check that 
> '42' and '42.0' passes and a check that '42' only passes.

For the more general case (where both 42 and 42.0 pass), perhaps you 
could check to see if the argument is a Numeric, i.e.

     if (Qtrue == rb_obj_is_kind_of(arg1, rb_cNumeric)) {
         /* could be an Integer, Float, or other numeric type */
     } else if (TYPE(arg1) == T_FIXNUM) {
         /* it's definitely a Fixnum) */
     }

If you need to specifically check for (Fixnum || Float) and no other 
Numeric types are supported then yes, you may need to roll a little 
custom macro for that case.

Hope this helps,

Lyle