[pypy-commit] cffi default: A test: how you should(?) write a function pointer that you want

[arigo]

Author: Armin Rigo <arigo at tunes.org>
Branch: 
Changeset: r595:a237412122bd
Date: 2012-07-08 10:35 +0200
http://bitbucket.org/cffi/cffi/changeset/a237412122bd/

Log:	A test: how you should(?) write a function pointer that you want to
	cast around

diff --git a/testing/test_verify.py b/testing/test_verify.py
--- a/testing/test_verify.py
+++ b/testing/test_verify.py
@@ -596,3 +596,16 @@
     assert repr(s) == "<cdata 'struct foo_s' owning 8 bytes>"
     assert s.aa == 36
     assert s.bb == 49
+
+def test_func_as_funcptr():
+    ffi = FFI()
+    ffi.cdef("int *(*const fooptr)(void);")
+    lib = ffi.verify("""
+        int *foo(void) {
+            return (int*)"foobar";
+        }
+        int *(*fooptr)(void) = foo;
+    """)
+    foochar = ffi.cast("char *(*)(void)", lib.fooptr)
+    s = foochar()
+    assert str(s) == "foobar"