Issue #7 resolved

Callback can't have void return type

created an issue

"void foo(...)" callback functions work in the ctypes backend but crash the interpreter in the default backend.




from cffi import FFI, backend_ctypes

ffi = FFI()

ffi = FFI(backend=backend_ctypes.CTypesBackend())

def foo(): pass foo_cb = ffi.callback("void foo()", foo) result = foo_cb() # crash! assert result is None }}} Output: {{{ convert_from_object: 'void' Fatal Python error: convert_from_object Aborted }}}

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