cgGetNumParentTypes(3)

NAME
cgGetNumParentTypes - gets the number of parent types of a given type

SYNOPSIS
  #include <Cg/cg.h>
  int cgGetNumParentTypes( CGtype type );

PARAMETERS
The child type.

RETURN VALUES
Returns the number of parent types.

Returns 0 if there are no parents.

DESCRIPTION
cgGetNumParentTypes returns the number of parents from which type inherits.

A parent type is one from which the given type inherits, or an interface type that the given type implements.

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
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.

ERRORS
None.

HISTORY
cgGetNumParentTypes was introduced in Cg 1.2.

SEE ALSO
the cgGetParentType manpage