Synopsis

PDX_BOOL mda_IsValidDbptr(MDA_PTR db_ptr)

Purpose

Test if a database pointer is valid.

Description

Given the database pointer db_ptr, determine if it is valid. Valid implies that the pointer can be passed to other mda functions. It does not imply that the entity referenced by db_ptr is valid.

Input

db_ptr

Database pointer to validate

Return

      0 if db_ptr is not a valid database pointer
      1 if db_ptr is a valid database pointer
      .fi