floatp

floatp( 
g_value 
) 
=> t / nil

Checks whether the specified object is a floating-point number. Same as realp.

The suffix p is usually added to the name of a function to indicate that it is a predicate function.

g_value

Any SKILL object.

`t`	If g_value is a floating-point number, a data type whose internal name is `flonum`.
`nil`	If g_value is not a floating-point number.

floatp(3)    
=> nil

floatp(3.0)  
=> t