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Re: Bison 1.30f


From: Hans Aberg
Subject: Re: Bison 1.30f
Date: Thu, 13 Dec 2001 10:43:30 +0100

At 18:11 -0800 2001/12/12, Paul Eggert wrote:
>alloca is notoriously nonstandardized, which is why "include
><alloca.h>" is so carefully protected in bison.simple.

The principal designer BS thinks it's a low level hack that should not be
used; discussions in the comp.std.c++ newsgroup indicated it will not
become a part of the future C++ standard.

I do not know if alloca is a part of C99, though.

BTW, when using malloc, what stack re-allocation policy is the Bison
generated parser using? -- The thing is if one doubles the stack for every
new memory allocation, then time allocation complexity becomes linear.

  Hans Aberg





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