fixp

fixp( 
g_value 
) 
=> t / nil

Checks whether the specified object is an integer, that is, a fixed number.

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

g_value

Any SKILL object.

`t`	If g_value is an integer, a data type whose internal name is `fixnum`.
`nil`	If g_value is not an integer.

fixp(3)     
=> t

fixp(3.0)   
=> nil