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doc: link to FFI examples

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Sebastian Ullrich 2023-08-04 09:42:02 +02:00
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doc/dev/ffi.md
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@ -11,6 +11,8 @@ There are two primary attributes for interoperating with other languages:
It can also be used with `def` to provide an internal definition, but ensuring consistency of both definitions is up to the user.
* `@[export sym] def leanSym : ...` exports `leanSym` under the unmangled symbol name `sym`.
For simple examples of how to call foreign code from Lean and vice versa, see <https://github.com/leanprover/lean4/blob/master/src/lake/examples/ffi> and <https://github.com/leanprover/lean4/blob/master/src/lake/examples/reverse-ffi>, respectively.
## The Lean ABI
The Lean Application Binary Interface (ABI) describes how the signature of a Lean declaration is encoded as a native calling convention.