Re: setjmp/longjmp?

[Simon Wright <simon@pushface.org>]

chris <spamoff.danx@ntlworld.com> writes:

> I started a binding to libpng so I can load some images into OpenGL,
> but the library uses setjmp and longjmp for error handling.  This is
> very new to me but from what I understand it's some form of library
> "goto" which allows code to jump to predefined points on given
> events.  When dealing with such things is it best to wrap around the
> code with C and catch all these longjmps with setjmps, returning
> error flags if something fails?

setjmp/longjmp are like a block to catch an exception, and raising
that exception.

I would do as you suggest - your chance of setting up a jmpbuf in Ada
is close to zero.