[lossolo]

std::array is stack allocated array with known size compile time. std::vector is dynamically allocated array (on heap).

So C array equivalent = std::array, not std::vector.

[user5994461]

The point of the parent was to write C++ code the C++ way. Most arrays in real programs should be std::vector.

Imitating C arrays with std::array is the perfect example of bastardized C/C++ code.

[lossolo]

Using std::array is writing code C++ way. If you know size of the array compile time and you know it will fit the stack then there is no reason to use std::vector.