cc: james.d.carlson at sun.com kpv at research.att.com
Subject: Re: Re: [ksh93-integration-discuss] final ksh93 code review,  round 
two (July   9)
--------

Just a word about the AST stdio implementation.

It is built using the sfio library routines that Phong Vo and I wrote
around 1990 and presented at USENIX.

The library is source compatible with ANSI C stdio.h.  In addition,
on most architectures, we generate binary compatibilty as well
so that existing binaries compiled with stdio.h should work
without recompilation.

I beleive that it outperforms all the other stdio implementations
(at least the ones we have tested) even in binary compatibilty mode.
It has a lot of features often not available in stdio libraries
such as using memory mapping and adaptive buffering.

David Korn
dgk at research.att.com

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