[Cffi-devel] cffi idioms: with-foreign-pointer
Does with-foreign-pointer free up the memory after body is executed? I have been using constructs such as: (let ((num-channel-groups* (foreign-alloc :uint))) (ddc-get-num-channel-groups file-handle* num-channel-groups*) (prog1 (mem-ref num-channel-groups* :uint) (foreign-free num-channel-groups*))) Is with-foreign-pointer the idiomatic way to accomplish the same thing? Thanks Mirko
On Sun, Feb 8, 2015 at 12:55 AM, Mirko Vukovic <mirko.vukovic@gmail.com> wrote:
(let ((num-channel-groups* (foreign-alloc :uint))) (ddc-get-num-channel-groups file-handle* num-channel-groups*) (prog1 (mem-ref num-channel-groups* :uint) (foreign-free num-channel-groups*)))
Is with-foreign-pointer the idiomatic way to accomplish the same thing?
Yes. with-foreign-object is even more convenient since it takes a type rather than a size. with-foreign-object and with-foreign-pointer will also perform stack allocation on implementations that support it. Cheers, -- Luís Oliveira http://kerno.org/~luis/
participants (2)
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Luís Oliveira -
Mirko Vukovic