sizeof(struct timeval)

[Giovanni Bajo]

Tony Houghton wrote:

> I'm writing a python program which reads input device events so it
> needs to know sizeof(struct timeval). By using the struct module I
> should be able to work out sizeof(long) from python, but I can't
> think of a way to measure non-fundamental types without including a
> little bit of C, which I'd rather avoid.
>
> How safe would I be assuming that
>
>     sizeof(struct timeval) == 2 * sizeof(long)
>
> is always true on Linux on different architectures? AFAIK the input
> device interface is Linux-specific so I don't need to worry about
> other OS's.


If I were you, I would write a Pyrex 4-liners which exposes this structure to
Python in the way you prefer. This would immediately fix all these
compatibility issues.
-- 
Giovanni Bajo