Do vector<int>& v = M[someInt];
.
C++ local variable syntax
Question
I have a map<int, vector<int>> M
. In some functions I want to use M[someInt]
multiple times. Instead of having M[someInt].size()
, M[someInt].push_back(123)
etc all over the place I want to use a local variable instead.
I'm currently using vector<int> v = M[someInt];
however I don't want to copy the contents of the vector. I think I can do vector<int> *v = &M[someInt];
How can I create a local variable that refers to M[someInt]
w/o copying the vector's contents and, ideally, w/o using a pointer?
Solution
Licensed under: CC-BY-SA with attribution
Not affiliated with StackOverflow