[pliftkl]

While I don't do enough C to comment on some of the other items, the global static variable named "last" seems likely to collide with a variable name that would be commonly used.

[gregoryc_]

I'm trying to gather support for this project. Is anyone interested? I seem to have gotten over 2,400 views on the cprogramming site in a few hours.

Give me an email :)

[gregoryc_]

I can modify that.

Anyone can modify that. I might have a global namespace in some way. I might use a certain prefix.

Or I can have an inline function that gets the pointer.