Re^4: Use of uninitialised value... but it is defined ?!

'my' has a compile-time and run-time action. The compile-time action is to place a new undef SV in the pad of the sub currently being compiled. This var is immediately available to be closed over when compiling any following subs or BEGIN blocks within the same scope.

At run time it pushes the current SV in the pad onto the args stack, and adds a note to free the SV on scope exit (and replace with a fresh new one).

An assignment, such as ..=1 happens at run time of course.

Dave.

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Re^5: Use of uninitialised value... but it is defined ?! by BrowserUk (Patriarch) on Mar 02, 2016 at 09:31 UTC
Somehow, the first example seemed appropriate here :) With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday' Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". I knew I was on the right track :) In the absence of evidence, opinion is indistinguishable from prejudice.	[reply]

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Re^5: Use of uninitialised value... but it is defined ?!
by BrowserUk (Patriarch) on Mar 02, 2016 at 09:31 UTC

Somehow, the first example seemed appropriate here :)

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.

"Science is about questioning the status quo. Questioning authority". I knew I was on the right track :)

In the absence of evidence, opinion is indistinguishable from prejudice.

[reply]