Mercurial > pytave
comparison pycall.cc @ 368:4d54fb68de71
__py_is_none__: new compiled function to test whether an object is None
* __py_struct_from_dict__.cc (F__py_is_none__): New function.
* @py/subsref.m, @pyobject/subsref.m, pycall.cc: Use __py_is_none__ instead
of ad hoc lambda expression.
| author | Mike Miller <mtmiller@octave.org> |
|---|---|
| date | Thu, 25 Aug 2016 16:27:46 -0700 |
| parents | 087e7bc3697f |
| children | 55cd61fe519a |
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| 367:9d7188514f2c | 368:4d54fb68de71 |
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| 276 | 276 |
| 277 ## None as a return value | 277 ## None as a return value |
| 278 %!test | 278 %!test |
| 279 %! f = pyeval ("lambda: None"); | 279 %! f = pyeval ("lambda: None"); |
| 280 %! r = pycall (f); | 280 %! r = pycall (f); |
| 281 %! is_none = pyeval ("lambda x: x is None"); | 281 %! assert (__py_is_none__ (r)) |
| 282 %! assert (is_none (r)) | |
| 283 | 282 |
| 284 ## But returning None will not set "ans" | 283 ## But returning None will not set "ans" |
| 285 %!test | 284 %!test |
| 286 %! f = pyeval ("lambda: None"); | 285 %! f = pyeval ("lambda: None"); |
| 287 %! clear ans | 286 %! clear ans |