NAME
cgGetNumParentTypes - gets the number of parent types of a given type
SYNOPSIS
#include <Cg/cg.h> int cgGetNumParentTypes( CGtype type );PARAMETERS
- type
The child type.
RETURN VALUES
Returns the number of parent types. (CGparameter)0 is returned if there are no parents.
DESCRIPTION
cgGetNumParentTypes returns the number of parents from which the child type type inherits.
A parent type is one from which the given type inherits, or an interface type that the given type implements. For example, given the type definitions:
interface myiface { float4 eval(void); }; struct mystruct : myiface { float4 value; float4 eval(void ) { return value; } };mystruct has a single parent type, myiface.
Note that the current Cg language specification implies that a type may only have a single parent type -- an interface implemented by the given type.
EXAMPLES
to-be-written
ERRORS
cgGetNumParentTypes does not generate any errors.
HISTORY
cgGetNumParentTypes was introduced in Cg 1.2.
SEE ALSO