[cffi-devel] :ensure-float? Was I dreaming?
Luís Oliveira
luismbo at gmail.com
Wed May 17 21:11:33 UTC 2006
On 2006-maj-17, at 20:24, Ken Tilton wrote:
> 1. Minor question: I coulda swore the first time I fixed this I dug
> around and discovered :ensure-float and used that in my DEFCFUN.
> The second time I ran into it I went looking for :ensure-float and
> could not find it. Found :ensure-XXX for a couple other things in
> the UFFI-compat bit. Maybe it was one of the XXXs. No big.
Hmm, I don't remember.
> 2. Am I missing something? Is there some reason we cannot have an
> ensure-float? Is it one of those deals where for some obscure
> reason unbeknownst to me there is no reliable way to guess what is
> needed and programmers need to Just Provide the Right Type?
We define ensure-float and ensure-double in cl-opengl, seems to work
pretty well. I think a :coerce type would be interesting:
(:coerce <type>)
I haven't thought about which (primitive) types this would make sense
for or how hard this type should try to convert things.
--
Luís Oliveira
http://student.dei.uc.pt/~lmoliv/
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