forum.alglib.net

Is there any interoperability between alglib and the standard libraries?

For example, alglib::1d_real_array is basically the same as std::vector<double>. Is there an easy way to convert one to the other that doesn't involve copying the data?

No, it is not possible. ALGLIB uses its own data structures because std::vector doesn't provide properly aligned storage - which is essential for linear algebra performance.

Ah. Yes, I see want you mean.

I did a search to see whether the standard libraries in combination with an aligned allocator might work, but it appears a little more involved than that with some compilers.

The problem is that allocator can be aligned, but std::vector does not guarantee that it will start to use memory in aligned mode. Theoretically, it can allocate block and then begin to store elements starting from unaligned offset.