On Mon, Jul 1, 2013 at 9:24 AM, Mirko Vukovic <mirko.vukovic@gmail.com> wrote:

On Mon, Jul 1, 2013 at 9:04 AM, Luís Oliveira <luismbo@gmail.com> wrote:

Mirko Vukovic <mirko.vukovic@gmail.com> writes:

> The following example from section 10 of the cffi documentation is
> causing a segmentation fault on clisp on cygwin:

The varargs support in CFFI makes some assumptions that might not be
true on Windows, I suppose. Is this x86 or x86-64?

It's complicated:
- The machine is X86-64 running Windows 7
- I am using clisp 2.48 which is part of the cygwin distribution
- cygwin is 32-bit

- I assume that clisp is also 32 bit
- The version of gcc (for what it's worth) is 4.5.3

Mirko

Your comment brings to mind another issue I had. I was trying to fetch a signed integer 32 variable that contained error codes. But I was getting large negative numbers. I only got reasonable results when I set the cffi code to look for an unsigned integer 32 variable. Maybe the two issues are related.

Mirko