afft: a C++17 Wrapper Library for FFT-like Computations on Various Targets

Fast Fourier Transformation (FFT) and other related transformations are very demanding and time-consuming computations. There are many C/C++ libraries focusing on providing an efficient FFT implementation on a specific hardware such as CPUs, GPUs and others. However, their tight specialization implies low portability. If an application is supposed to be multiplatform, either a several versions of the program or a wrapper around the FFT must be written. The afft library is a modern C++17 wrapper library addressing this problem, allowing to use most of features offered by the backend libraries while providing extra layer of safety checks and other features.