From: Julian Hsiao <madoka AT novastar DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: interpreting C ???
Date: Sat, 10 Mar 2001 16:19:26 -0500
Organization: Carnegie Mellon University
Message-ID: <madoka-4DFF39.16192610032001@news.supernews.com>
References: <3A9D5EC9 DOT CE9D100C AT t-online DOT de> <983hcu$d4p$1 AT nets3 DOT rz DOT RWTH-Aachen DOT DE>
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In article <983hcu$d4p$1 AT nets3 DOT rz DOT RWTH-Aachen DOT DE>,
 Hans-Bernhard Broeker <broeker AT physik DOT rwth-aachen DOT de> wrote:

> Writing a C interpreter is one of the longest standing open projects
> listed by the GNU project, on their website. AFAIK, no progress has
> been achieved in a long while. 

On the topic of C interpreters, there was one that I came across called 
Leonardo (sp? it's supposed to be named after the artist).  It supports 
most of the C standard library (stdio, string, math, etc.)  I think the 
way it was done was that the author uses a virtual CPU (kinda like the 
JVM) that executes the C source code.

The really cool thing about this interpreter is that it allows you to 
step _backwards_ when debugging, which is helpful at times.  And if 
you're just writing command-line programs, it's very easy to debug your 
code using Leonardo, and later compile it with something else.

Unfortunately, the interpreter hasn't been updated for a few years, and 
it only runs on Macintoshes.  Does anyone know of similar programs for 
the PC?

Thanks.

Julian Hsiao
madoka AT novastar DOT com