[Solved] Template to determine the size in bytes of various variables

by


Solution in C++14, assuming I understood what you meant:

template <class Container>
constexpr auto byte_size(const Container& container) {
    using std::begin;
    using std::end;
    return (end(container) - begin(container)) * sizeof(container[0]);
}

Note that this will work even if the container is empty, since sizeof does not evaluate its operand.

It won’t work for std::vector<bool> though—guess you’ll have to add a specialization for that.

7

solved Template to determine the size in bytes of various variables