| Allegro CL version 10.1 New since the initial 10.1 release. | ||||||||||
Arguments: instance
This macro returns the wrapper from the standard instance. The wrapper represents the class of the instance, and points to that class. If the wrapper is valid, the first element, which is always an integer, will be non-zero. If the wrapper is invalid then steps need to be taken to get the current wrapper from the class and use it.
See Appendix: Effective-method selection in Allegro CL CLOS and Associated Optimizations in implementation for more information on this function.
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This page is new in the 10.1 release.
Created 2019.8.20.
| Allegro CL version 10.1 New since the initial 10.1 release. | ||||||||||