CA Compress/2 › Calling the Subroutines › Assembler Language › COBOL › PL/I Optimizing Compiler

PL/I Optimizing Compiler

The compiler must be informed that the CA Compress/2 subroutines are Assembler subroutines by declaring all entry points, as follows:

DCL (SHRINK,EXPAND,SHRINKZ,EXPANDZ,SHRINKS,EXPANDS,CLOSE)
 OPTIONS (ASM INTER);

Any unused subroutines can be omitted. The CA Compress/2 subroutines can then be called using the standard PL/I CALL statement.

As in the case of COBOL, dynamic calls to SHRINK and EXPAND invoke the utilities, causing unpredictable results.