How to get the address of the std::vector buffer start most elegantly?

Question

I want to use std::vector for dynamically allocating memory. The scenario is:

int neededLength = computeLength(); // some logic here

// this will allocate t         


        

Answer 1

Well, you can remove one set of parens:

&buffer[0]

but that is the common, idiomatic way of doing it. If it really offends you, I suppose you could use a template - something like:

template  
T * StartOf( std::vector  & v ) {
    return &v[0];
}