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Hi Bob,
Qusptrus('QGPL/MYSTUFF' : pData : apiErrorDS);
> foo(pData : 1000000);
This passes the address of the data in the user space, and tells the subproc that it is 1 megabyte in size. No conversion is performed and the pointer to that data is passed to the foo() subprocedure.
I completely disagree. Your code uses a separate parameter (the length parameter) to dictate the length of the string. It does not use a null-terminator, and therefore should not be coded with options(*String).
Just code it as a normal pointer. When you want to pass a variable directly, use %ADDR(). When you want to write data from a pointer (such as your user space example) then pass the pointer directly. It's much easier to read and understand, and doesn't confuse people who then start thinking that options(*string) requires %addr().
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