- Feb 06, 2015
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Steffen Müthing authored
If an iterator facade (like entity iterators) wants to allow the embedded implementation to return either an (internally stored) reference or a temporary object and expose these two behaviors to enable performance optimizations, operator->() needs special handling: If the implementation returns a reference, operator->() in the facade can simply return the address of the referenced object, but if the returned object is a temporary, we need to capture and store it in a helper object to make sure it outlives the member access. This patch adds a little helper function that tansparently handles both cases.
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