zerop

zerop( 
g_value 
) 
=> t / nil

Checks whether the specified object is equal to zero. zerop is a predicate function.

g_value

A SKILL object that is either a floating-point number or an integer.

`t`	If g_value is equal to zero.
`nil`	If g_value is not equal to zero.

zerop( 0 )
=> t

zerop( 7 )
=> nil