Is there a way to statically-initialize a dynamically-allocated array in C++?

Question

In C++, I can statically initialize an array, e.g.:

int a[] = { 1, 2, 3 };

Is there an easy way to initialize a dynamically-allocated array

Answer 1

To avoid endless push_backs, I usually initialize a tr1::array and create a std::vector (or any other container std container) out of the result;

const std::tr1::array values = {T(1), T(2), T(3), T(4), T(5), T(6)};
std::vector  vec(values.begin(), values.end());

The only annoyance here is that you have to provide the number of values explicitly.

This can of course be done without using a tr1::array aswell;

const T values[] = {T(1), T(2), T(3), T(4), T(5), T(6)};
std::vector  vec(&values[0], &values[sizeof(values)/sizeof(values[0])]);

Althrough you dont have to provide the number of elements explicitly, I prefer the first version.