[Ecls-list] C-embedding buglets
Juan Jose Garcia-Ripoll
Juan.Ripoll at mpq.mpg.de
Tue Dec 18 00:17:06 UTC 2001
Rudi Schlatte wrote:
> I've played a bit with the C interface of ECL. Some things that I
> stumbled over:
> - All the macros work only when prefixed with "ffi:", i.e.
> (ffi:defcbody ...) instead of (defcbody "..."). Failing to do this
> yields messages like [...]
The documentation is missing many changes, but the foreign function
interface has its own package that one should "use" -- in the lispy
sense of the word --. This package is devoted to host all keywords
related to embedding C code, C types, etc.
> - I missed an entry for conses and lists in the node "Manipulating
> Lisp Objects", documenting documenting CONS(..), CAR, CDR,
> make_list(n, ...).
I take note.
> - There is a neat trick in gcc to embed a block in an expression that
> is of use in defcbody and friends. Something like the following
> could be put in the node "Embedding C code in Lisp source":
Thanks for the text. I did not know about this extension, which is
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