I have RPG procedures where the first two parameters are alternates, i.e.
values must be supplied for 
param1, param3, param4, etc
or 
param2, param3, param4, etc

Using *OMIT I can call these in either mode from RPG, e.g.
callp procname(value1 : *OMIT : value3 : value4)
or 
callp procname(*OMIT : value2 : value3 : value4)

However I need to call some of these routines from some legacy C code.


How do I specify in C (both the prototype and the code) that param1 & param2
can be *OMIT'd?


regards

Stephen Osborn

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