Server Guide


Call-out on OS/390

For OS/390, when passing parameters from Smalltalk to COBOL, or vice versa, you must correctly define the parameters in each application. The following table summarizes the more common data types.

Table 1. Smalltalk to COBOL parameter definition for OS/390

Smalltalk parameter type Smalltalk class COBOL definition
pointer String PIC X.
pointer String PIC X(25).
int32 Integer PIC S9(9) COMP.
uint32 Integer PIC S9(9) COMP.
float Float COMP-2.
struct OSPtr
01 Structure.
02 A PIC X.
...
02 Z PIC X

For more information on call-out on OS/390, see the following sections.


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