Re: [cffi-devel] defcfun optimization idea

"Luís Oliveira" luismbo@gmail.com writes:

What about floats? From the manual:

"On most but not all systems, :float and :double represent a Lisp single-float and double-float, respectively. It is not so useful to consider the relationship between Lisp types and C types as isomorphic, as simply to recognize the relationship, and relative precision, among each respective category."

I don't remember what the implications are.

If I recall correctly, it means that because Lisp's float types are not specified in terms of C's, thinking of C:floats and C:doubles as L:single-floats and L:double-floats is bound to lead to confusion.

I suppose the information about float types, and perhaps all types, could come from CFFI-SYS.