[racket] size_t and FFI?

This should work:

_uintptr = size_t
_intptr  = ssize_t

Tobias


On Fri, 08 Feb 2013 20:40:43 +0100, Tony Garnock-Jones <tonyg at ccs.neu.edu>  
wrote:

> Hi all,
>
> When using Racket's FFI, is there a standard C numeric type
> corresponding to size_t? If not, should there be? Many C APIs expose
> functions along the lines of
>
>   ... myfunc(..., void *buf, size_t buflen, ...);
>
> and since size_t varies between 32- and 64-bit platforms, I'm unsure
> what to supply there.
>
> I note that in collects we have
>
> ./db/private/generic/socket.rkt:   (define _size_t _int)
> ./mred/private/wx/cocoa/image.rkt: (define _size_t _long)
> ./racket/draw/unsafe/jpeg.rkt:     (define _size_t _intptr)
>
> ... of which the last one looks most likely to work properly.
>
> Cheers,
>   Tony
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>   http://lists.racket-lang.org/users


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Tobias Hammer
DLR / Institute of Robotics and Mechatronics
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