Dear list,
I have code like this which dispatches on
the type of a homogenous vector:
(define (gl-vector->type vec)
(cond
((bytes? vec) GL_UNSIGNED_BYTE)
((s8vector? vec) GL_BYTE)
((u16vector? vec) GL_UNSIGNED_SHORT)
((s16vector? vec) GL_SHORT)
((u32vector? vec) GL_UNSIGNED_INT)
((s32vector? vec) GL_INT)
((f32vector? vec) GL_FLOAT)
((f64vector? vec) GL_DOUBLE)))
I was wondering if there is a more efficient way to
do this, one which doesn't involve a linear scan
over all possible types. I presume that at the C level
there is a "type tag" associated with any of these types;
is it possible to access this from the Racket level?
Thanks,
Stephan
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