sgs_IsCallable(P) [functions]

SGSBOOL sgs_IsCallable( sgs_Context* C, sgs_StkIdx item )

Returns whether the specified stack item item is callable.

• If item is out of bounds, 0 is returned.

SGSBOOL sgs_IsCallableP( sgs_Variable* var )

Returns whether the specified variable var is callable.

• Callable variables are either SGS functions or C functions or objects with the CALL interface implemented.