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Diffstat (limited to 'doc/source/reference/global_state.rst')
| -rw-r--r-- | doc/source/reference/global_state.rst | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/doc/source/reference/global_state.rst b/doc/source/reference/global_state.rst index f18481235..20874ceaa 100644 --- a/doc/source/reference/global_state.rst +++ b/doc/source/reference/global_state.rst @@ -84,3 +84,13 @@ contiguous in memory. Most users will have no reason to change these; for details see the :ref:`memory layout <memory-layout>` documentation. + +Warn if no memory allocation policy when deallocating data +---------------------------------------------------------- + +Some users might pass ownership of the data pointer to the ``ndarray`` by +setting the ``OWNDATA`` flag. If they do this without setting (manually) a +memory allocation policy, the default will be to call ``free``. If +``NUMPY_WARN_IF_NO_MEM_POLICY`` is set to ``"1"``, a ``RuntimeWarning`` will +be emitted. A better alternative is to use a ``PyCapsule`` with a deallocator +and set the ``ndarray.base``. |