The simplified answer: no, it's not that simple. If @_ isn't populated, then the signature code gets its arguments directly from the stack. If @_ gets populated, then the stack and @_ can get out of sync, e.g. by code within the signature which manipulates @_. So in that case the code must get its args from @_ rather than from the stack. So there have to be two code paths for everything.

See this p5p post for more details.

Dave.

In reply to Re^3: Contents of @_ using subroutine signatures with default values (flag) by dave_the_m
in thread Contents of @_ using subroutine signatures with default values by davido

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