When declaring a 2d vector, is the space between the last two >'s required?
Or is this fine?Code:vector<vector<int> > v;
I heard that the extra space is required, but I'm not sure.Code:vector<vector<int>> v;
When declaring a 2d vector, is the space between the last two >'s required?
Or is this fine?Code:vector<vector<int> > v;
I heard that the extra space is required, but I'm not sure.Code:vector<vector<int>> v;
If you don't put a space between the two >'s the compiler may interpret it as the >> character ( think cin >> x; ) and it won't compile.
When I use this kind of construct, I usually doThe extra space on both sides helps me see it more clearly. However,Code:vector< vector<int> >;
is just as correct (but asymmetrical and ugly in my opinion).Code:vector<vector<int> >;
abachler: "A great programmer never stops optimizing a piece of code until it consists of nothing but preprocessor directives and comments"
Compilers will start allowing you to skip the space soon, the change will be in the next standard. Until then, it is required.
