A Smart Reference Counted Pointer for User-Defined Types for ParmParse
The template class PP_LnClassPtr<T> is derived from PP_LnPtr<T>. It provides a reference counted wrapper around a pointer to type T (a T*). The type T MUST be a user-defined type, not an intrinsic type. Given this restriction, we can supply an operator->().This is a convenience class for ParmParse and will not be in any way supported by anyone at ANAG.
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