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Wednesday, September 10 • 2:00pm - 3:00pm
Making Allocators Work, Part I

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Memory is an important property for every object, as whatever resources it manages, it must occupy some memory. THe ability to customize memory allocation is important for every C++ program that cares about performance, debug ability and support.

The original C++ standard supported an allocator parameter for every container, yet this feature was widely derided or ignored, as it was underspecified to the point it could not portably be used. C++11 makes significant changes to the allocator model, that simply its use while making it more powerful.

The Library Fundamentals TS goes further, allowing allocators' type to be supplied at runtime, rather than compile type, using classic object oriented polymorphism - yet building on the infrastructure laid down in C++11.

This material should be of interest to both library authors and consumers, although clearly there are more details for the implementers to absorb. It also includes an interesting case study in C++11 compile time reflection, as required to implement the new 'allocator_traits' facility.


Alisdair Meredith

Bloomberg LP
Alisdair Meredith is a software developer at BloombergLP in New York, and the C++ Standard Committee Library Working Group chair. | | He has been an active member of the C++ committee for just over a decade, and by a lucky co-incidence his first meeting was the kick-off meeting for the project that would become C++11, and also fixed the contents of the original library TR. | | He is currently working on the BDE project, BloombergLP's open... Read More →

Wednesday September 10, 2014 2:00pm - 3:00pm

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