Concatenate two std::vectors in one line using C++11

Is there a way, using C++11, to concatenate two std::vectors in one code line, with the first defined in a local variable, the second returned from a function:

#include <vector>
#include <iostream>
#include <iterator>

std::vector<int> getNewVector()
{
    return {4,5,6};
}

int main(int argc, char** argv)
{
  std::vector<int> dest;
  std::vector<int> src{1,2,3};

  dest = src + getNewVector(); //Error: no operator "+" matches these operands

  return 0;
}