void pointer conversion support, from Niall Douglas, then heavily

edited by DWA.


[SVN r32836]

test/voidptr.py

@@ -0,0 +1,54 @@
+# Copyright Niall Douglas 2005.
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or copy at
+# http://www.boost.org/LICENSE_1_0.txt)
+
+
+"""
+>>> from voidptr_ext import *
+
+
+    Check for correct conversion
+    
+>>> use(get())
+
+    Check that None is converted to a NULL void pointer
+    
+>>> useany(get())
+1
+>>> useany(None)
+0
+
+    Check that we don't lose type information by converting NULL
+    opaque pointers to None
+    
+>>> assert getnull() is None
+>>> useany(getnull())
+0
+
+   Check that there is no conversion from integers ...
+   
+>>> try: use(0)
+... except TypeError: pass
+... else: print 'expected a TypeError'
+
+   ... and from strings to opaque objects
+   
+>>> try: use("")
+... except TypeError: pass
+... else: print 'expected a TypeError'
+"""
+def run(args = None):
+    import sys
+    import doctest
+
+    if args is not None:
+        sys.argv = args
+    return doctest.testmod(sys.modules.get(__name__))
+    
+if __name__ == '__main__':
+    print "running..."
+    import sys
+    status = run()[0]
+    if (status == 0): print "Done."
+    sys.exit(status)