This is an attempt to build a very lightweight allocator for STL containers like std::vector, which can allocate memory aligned. With the introduction of std::aligned_alloc in c++17 there is a cross platform solution. To date it seems as if if this is not supported yet on all platforms.
Therefore I took a look into Boost align library and "copied" the MSVS and macOS parts until std::aligned_alloc is available on these platforms as well.
This is the first attempt to build a STL compatible allocator. There are unit tests avaiable. Nevertheless, be carefull when using this allocator!!!
Create a vector which holds 16-byte alligned floats for e.g. audio processing purpose.
using vector_r16b = std::vector<float, ha::alignment::aligned_allocator<float, 16>>;
vector_r16b values;
values.push_back(1.f);
...- https://en.cppreference.com/w/cpp/named_req/Allocator
- https://en.cppreference.com/w/cpp/memory/allocator
- https://github.com/boostorg/align/tree/develop/include/boost/align/detail
Copyright 2021 Hansen Audio
Licensed under the MIT: https://mit-license.org/