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Steve Hay
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Optimized constant subs are stored as bare scalars in the stash (package hash), which formerly held only GVs (typeglobs).

But you cant create them manually - you cant assign a scalar to a stash element, and expect it to work like a constant-sub, even if you provide a prototype.

This is a feature; alternative is too much action-at-a-distance. The following test demonstrates - napier is not seen as a function at all, much less an optimized one.

1 POD Error

The following errors were encountered while parsing the POD:

Around line 399:

Unknown directive: =head