Improving C++ performance using temporaries

Object oriented programs are simpler to implement and maintain than those using traditional programming methods. At the same time, object oriented programs create and destroy objects, incurring overhead costs. They also cause unmanned temporary objects of the same type to be created in the scope of the calling routine. Both of these factors affect the performance of object oriented programs compared to procedural programs. For these reasons, programmers view object oriented programming as wasteful compared to procedural programming. When runtime efficiency is important, developers have a legitimate reason to reject OOP. The authors propose to improve the efficiency of the underlying implementation by reusing temporaries. They report experimental results showing large speedups using this method.