An Introduction to Functions › Function Types › Standard Functions › User Functions

User Functions

User functions specify additional building blocks of user-written processing. User functions provide a means of incorporating user programs and subroutines into CA 2E generated applications. Their processing steps can be specified with action diagrams or user-written HLL. They can be implemented as inline code (internal functions) or calls to separate programs (external functions). The user functions are:

• Execute Internal Function (EXCINTFUN)
• Execute External Function (EXCEXTFUN)
• Execute User Program (EXCUSRPGM)
• Execute User Source (EXCUSRSRC)

For more information on user functions, see the chapter Defining Functions.