in reply to Re: Re^3: sprintf vs. substr (for zero-padded values)
in thread sprintf vs. substr (for zero-padded values)

Why is calling a sub so expensive?
You got to save state (and restore it when the sub returns). Furthermore, the lookup is done at runtime, not compiletime. After all, it's fine to have a call to a sub preceed the actual declaration - not to mention that AUTOLOAD would work if all was done at compile time.

Abigail

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