#include <qp2user.h> size_t Qp2ptrsize(void);
Qp2ptrsize() returns the pointer size, in bytes, for the IBM® i Portable Application Solutions Environment (IBM PASE for i) program currently running in the job.
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The function result is 4 for a 32-bit program, or 8 for a 64-bit program. The result is zero if IBM PASE for i pointer size is not available (such as when no IBM PASE for i program is running in the job).