Rational Developer for System z
COBOL for Windows, Version 7.5, Language Reference


FUNCTION-POINTER phrase

The FUNCTION-POINTER phrase defines an item as a function-pointer data item. A function-pointer data item can contain the address of a procedure entry point.

A function-pointer is a 4-byte elementary item. Function-pointers have the same capabilities as procedure-pointers. Function-pointers are easily interoperable with C function pointers.

A function-pointer can contain one of the following addresses or can contain NULL:

A VALUE clause for a function-pointer data item can contain only NULL or NULLS.

A function-pointer can be used in the same contexts as a procedure-pointer, as defined in PROCEDURE-POINTER phrase.


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