Re: C++ intermediate representation.

mefrill@yandex.ru (Vladimir)
15 May 2005 15:43:11 -0400

          From comp.compilers

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From: mefrill@yandex.ru (Vladimir)
Newsgroups: comp.compilers
Date: 15 May 2005 15:43:11 -0400
Organization: http://groups.google.com
References: 05-05-023 05-05-068 05-05-078
Keywords: C++, design

henry@spsystems.net (Henry Spencer) wrote in message
> In his "The Design and Evolution of C++", Stroustrup says that he let
> Aho and Johnson talk him out of writing his own recursive-descent
> parser for C++... and he now thinks that was a big mistake.


Stroustrup means using YACC or Bison I think, the programms that
generate LALR(1) parser and, consequently, demand input grammar must
be LALR(1). It is known C++ grammar is not LALR(k) for any k. So,
Stroustrup spent much time trying to write LALR grammar for C++. For
the moment there is GLR parser as the next generation LALR parsers,
which makes writing C++ frot-end fast and simple time spending.


Vladimir.


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