CTYPE 0.9.2 porting problems

Armin Steinhoff a-steinhoff at web.de
Mon Dec 6 12:17:08 CET 2004



Hi all,

I ported ctypes 0.9.2 to QNX6.3 ... 99.9 % is working but only the 
unittest test_functions.py makes some problem. Here is the code:


         p = pointer(c_int(99))
         result = f(p)
         self.failUnlessEqual(result.contents.value, 99) #---> works!!

         # We need to keep the pointer alive, otherwise the contents change:
         result = f(pointer(c_int(99)))
	print result.contents.value
         self.failIfEqual(result.contents.value, 99)

Error message:
# python test_functions.py
..........99
F.....
======================================================================
FAIL: test_pointers (__main__.FunctionTestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
   File "test_functions.py", line 194, in test_pointers
     self.failIfEqual(result.contents.value, 99)
   File "/usr/local/lib/python2.3/unittest.py", line 310, in failIfEqual
     raise self.failureException, \
AssertionError: 99 == 99

What's the problem here? 99 isn't equal 99 :)

----------------------------------------------------------------------
Ran 16 tests in 0.053s

FAILED (failures=1)
#


	
         # XXX But this not! WHY on earth?  ====>> BUT this IS working!!
         arg = byref(v)
         result = f(arg)
         self.failIfEqual(result.contents, v.value)


I see always a crash of Python if the library call time() is used ... 
but it happens only with this call.

What could be in general the reasons??

Regards

    Armin




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