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Re:Ask HN: Best way to learn modern C++? by AstralStorm on Wednesday March 07, 2018 @01:21PM (#16538501)
Not standard, unless you count "supported with the same semantics in multiple compilers" as good enough.

They are not portable between CPU architectures either way

For reference, C got real alignment support in C11 and C++ in C++17. Without this, even starting on SIMD is risky.

That said, you can go really far with a good C++ math library like Eigen which has singe vectorization in the operations themselves.

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