Compile-time pre-calculations in C++--Mohammad Nasirifar

The evolution.

Compile-time pre-calculations in C++

by Mohammad Nasirifar

From the article:

With C++17’s constexpr functions and C++20’s consteval specifier, it is easy to do io-independent pre-calculations of algorithms while compiling the program. This may not be useful or even possible in long running programs and is unlikely to make a difference in their performance, but in binaries that do short calculations with a set of parameters fixed at compile-time, a Sieve of Eratosthenes array, or roots of unity used for calculating DFT loaded right from the binary could make a difference...

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