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PL_markstack_ptr, sp, and all that

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From:
Tim Bunce
Date:
April 26, 2007 09:04
Subject:
PL_markstack_ptr, sp, and all that
Message ID:
20070426160347.GF11416@timac.local
Is there a nice clear explanation somewhere of how perl internals use
the mark stack for passing and returning values to and from subs?

I'm rusty on it and want to be sure I'm doing the right thing in the
DBI dispatch code when it's calling callbacks.

I vaguely recall someone doing a nice diagram, but that might just be
wishful thinking on my part.

Tim.

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