I have a vector of Scenes, vector<Scene>
. What is the correct way to iterate over the elements, as reference or not?
For example this:
BOOST_FOREACH(Scene scene, mScenes)
{
.....
}
Does the macro copy the Scene for each iteration over the vector, or does it use a reference behind the scenes?
So is it any different from this:
BOOST_FOREACH(Scene& scene, mScenes)
{
.....
}
BOOST_FOREACH
behaves exactly as you tell him, by value, reference or const reference