Are There Any Useful C Runtime Apis That I Can Call From Rpg Iv?

1.	Are There Any Useful C Runtime Apis That I Can Call From Rpg Iv?
Answer» There are several C runtime APIs available to the RPG IV developer. In OS/400 version 3, release 1 the scope of these APIs is limited. The CALLB operation code can be USED to directly call the C runtime APIs, provided they don't require "pass by value" parameters. In V3 R2 and later, parameters can be passed by reference or by value. In addition, PROTOTYPES are supporte for calling procedures WRITTEN in RPG IV or other languages. There are several C runtime APIs available to the RPG IV developer. In OS/400 version 3, release 1 the scope of these APIs is limited. The CALLB operation code can be used to directly call the C runtime APIs, provided they don't require "pass by value" parameters. In V3 R2 and later, parameters can be passed by reference or by value. In addition, Prototypes are supporte for calling procedures written in RPG IV or other languages.

Answer»

There are several C runtime APIs available to the RPG IV developer. In OS/400 version 3, release 1 the scope of these APIs is limited. The CALLB operation code can be USED to directly call the C runtime APIs, provided they don't require "pass by value" parameters. In V3 R2 and later, parameters can be passed by reference or by value. In addition, PROTOTYPES are supporte for calling procedures WRITTEN in RPG IV or other languages.

There are several C runtime APIs available to the RPG IV developer. In OS/400 version 3, release 1 the scope of these APIs is limited. The CALLB operation code can be used to directly call the C runtime APIs, provided they don't require "pass by value" parameters. In V3 R2 and later, parameters can be passed by reference or by value. In addition, Prototypes are supporte for calling procedures written in RPG IV or other languages.

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