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GPP Procedures
GPP2 supports procedures inside the GPP program, with or without parameters. Procedures are used in order to simplify and shorten the GPP program, and avoid typing the same piece of GPP program again and again.
Procedures must be defined before they can be used. It is advised to locate all the program procedures before any other executable block (after the declaration part), so they can be later called from any executable block.
Procedures may be called from within other procedures, However, recursive procedure calling is not supported in GPP.
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