C++ vector that *doesn't* initialize its members?

Question

I\'m making a C++ wrapper for a piece of C code that returns a large array, and so I\'ve tried to return the data in a vector.

Now t

Answer 1

The optimal solution is to simply change the allocator to do nothing for a zero-arguments construct. This means that the underlying type is the same, which dodges any kind of nasty reinterpret_casting and potential aliasing violations and can non-intrusively uninitialize any type.

template struct no_initialize : std::allocator {
    void construct(T* p) {}
    template void construct(T* p, Args&&... args) {
        new (p) T(std::forward(args)...);
    }
};