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Yeah... I'll do it tomorrow. Well, actually I've never used one of them. And it's not their "fault". There are some factors not existing in ANSI C. For example threads. And they've done a good job. I...

Of course, that looks like a mismatch in design. well, what solution would you propose in that case?

I think check each function if it's returning an error and you'll be fine.

Well, I tried reading it but got bored quickly ;-p. Now I see, it says "The symbol errno, defined by including the <errno.h> header, expands to a modifiable lvalue of type int". Dunno where I got...

PS: I think setting errno is not really portable, since some (many?) libraries define a function to return errno for the specific thread as errno (#define error _get_thread_errno()) And you can't...