MESSAGE
DATE | 2005-03-09 |
FROM | Contrarian
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SUBJECT | Re: [hangout] Perl and stacks
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>> If I sound like I dont know what I am talking about let me know, I am >> supplementing my classwork with reading about this stuff on my own. >> They cover too much syntax and not enough theory.
> sorry, my last msg. should have read
> your_logon% perldoc perlguts
your surmise was correct, there are many references to perl's stack there:
"Mortal" SVs are mainly used for SVs that are placed on perl's stack. ... the current offset on the Perl internal stack (cf. "SP") is ... The stack arguments are accessible through the ST(n) macro, which returns the "n"'th stack argument. ... This macro automatically adjust the stack for you, if needed. Thus, you do not need to call "EXTEND" to extend the stack.
and from Uri Guttman, on comp.lang.perl.misc 4/1999
in a discussion of state machines:
"this will crash your perl when it runs out of stack."
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