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Xavier Thompson
cython
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4fb37598
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4fb37598
authored
6 years ago
by
gabrieldemarmiesse
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docs: Added a note about the performance of slicing C++ stl containers.
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docs/src/userguide/wrapping_CPlusPlus.rst
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docs/src/userguide/wrapping_CPlusPlus.rst
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4fb37598
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@@ -423,6 +423,14 @@ comprehensions). For example, one can write::
If the loop target variable is unspecified, an assignment from type
``*container.begin()`` is used for :ref:`type inference <compiler-directives>`.
.. note::
Slicing stl containers is supported,
you can do ``for x in my_vector[:5]: ...`` but unlike pointers slices,
it will create a temporary Python object and iterate over it. Thus
making the iteration very slow. You might want to avoid slicing
C++ containers for performance reasons.
Simplified wrapping with default constructor
--------------------------------------------
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