Then why don't you (anybody in this thread) go read (and understand) the near-400-line subroutine of C code that tries to find variable names for undef warnings?

See S_find_uninit_var in sv.c.

The docs didn't say that sometimes variable names are optimized away (the mention of optimization was about the reported operation). The docs pretty clearly hint (to me, anyway) that finding the variable name isn't close to a trivial task and is known to fail somewhat often for reasons too complicated to usefully summarize in those docs.

- tye        

In reply to Re^3: Variable name missing in warning (source) by tye
in thread Variable name missing in warning by bogbert

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