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memory_management.rst

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Memory management

Memory management is critical for dynamic types since every dynamic type and dynamic data is managed with pointers. Every object stored inside of a dynamic object is managed by its owner, and users must delete every object they create using the factories.

.. literalinclude:: /../code/CodeTester.cpp
   :language: c++
   :start-after: //DYNAMIC_TYPES_NOTES_1
   :end-before: //!--
   :dedent: 8

To ease this management, the library defines smart pointers (DynamicTypeBuilder_ptr, DynamicType and DynamicData_ptr) that will delete the objects automatically when they are not needed anymore. DynamicType will always be returned as DynamicType_ptr because there is no internal management of its memory.

.. literalinclude:: /../code/CodeTester.cpp
   :language: c++
   :start-after: //DYNAMIC_TYPES_NOTES_2
   :end-before: //!--
   :dedent: 8

The only case where these smart pointers cannot be used is with functions loan_value and return_loaned_value. Raw pointers should be used with these functions, because the returned value should not be deleted, and using a smart pointer with them will cause a crash.