Constexpr — большое благо, выраженное в неправильной идее (Евгений Клименков, ISPRASOPEN-2019) — различия между версиями

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[[Категория:ISPRASOPEN-2019]]
[[Категория:С++]]
[[Категория:Компиляторы]]
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Версия 12:59, 9 января 2020

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Евгений Клименков

Introduction of ``constexpr" feature in the C++11 standard has born a great interest to the compile-time function execution in the programming languages communities. In this paper, we evaluate this feature and argue that while the compile-time evaluations are one of the most valuable optimization methods, its explicit support on the level of a programming language is a wrong decision. We show that compile-time evaluations must be enforced by the compiler automatically and transparently to the developer. Finally, we propose a programming language design principle stating that positive optimization ``hints must not be a part of programming language.

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