Procedure Pointer Calls

Procedure Pointer Calls

Procedure pointer calls provide a way to call a procedure dynamically. For example, by manipulating arrays, or tables, of procedure names or addresses, you can dynamically route a procedure call to different procedures.

Procedure pointer calls add entries to the call stack in exactly the same manner as static procedure calls. Any procedure that can be called using a static procedure call can also be called through a procedure pointer. If the called procedure is in the same activation group, the cost of a procedure pointer call is almost identical to the cost of a static procedure call.