Re: GCC parser performacne, What is the future of Compiler technology?

> From experience, the performance of the GCC/g++ *parser* had worried
> and continue to worry users and corporate that base their system
> compilers on it.
>
> [Really? The parser, not the lexer? -John]


Besides all the other reasons exposed further down in the thread, it is
relevant that the GCC parser for C++ does backtracking, and the
backtracking is often driven by some initial semantic processing; the
lexer however only looks at each character once because the file (after
preprocessing) is kept in memory in tokenized format.


Paolo

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