A sick idea - mmapped file output

[Mark Mitchell]

Zack --

  This only affects CPP when *not* integrated with the front-ends,
right?  In other words, when it is generating a .i file, not when we
do the fully integrated thing where the front-end just snarfs up the
tokens directly from the preprocessor?

  If that's right, I'm not sure that this level of cleverness is
necessary.  It's only going to be useful in the short term; once we do
the Right Thing in the front-ends, the preprocessor won't be doing any
I/O anyhow. 

  Or am I lost?

--
Mark Mitchell                   mark@codesourcery.com
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