Difference between arrow and dot operator

#1

in temp->children.count(ch) why use dot operator and where to use arrow operator

#2

arrow is used when you have a reference to the object and you wish to access its instance variables. And . is used when you have the actual object and you wish to access its variables.

#3

so in simple language we can say that whenever there is use of pointers we use arrow operator and here temp->children where children is unordered_map that is why after pointing to children we use dot count. is it correct??

#4

Yes, correct.______________