Re: [Chicken-users] passing a large unsigned-int to a foreign-lambda?

[Zbigniew]

Try "unsigned-integer32" instead.

On 6/19/06, Graham Fawcett <address@hidden> wrote:
> Hi folks, I have a foreign-lambda like this:
>
>     (define foo (foreign-lambda* int ((unsigned-int32 flags)) ...)
>
> Since it's a uint32, one possible value for "flags" is 2^31. But I
> cannot call the procedure with this value.
>
>     (foo (arithmetic-shift 1 31))
>
> returns an error because the argument is not a fixnum. If I try (fxshl
> 1 31) instead, I get a value of 0, presumably because I'm on a 32-bit
> build, which isn't right either.
>
> Any suggestions on how to get around this?
>
> Thanks,
> Graham
>
>
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