Why does C++ try not to cause scope check demand
This article mainly explains "why C++ tries not to cause the need for scope inspection". The content of the explanation in the article is simple and clear, and it is easy to learn and understand. Now please follow the editor's train of thought slowly and deeply. Let's study and learn "why C++ tries not to cause the need for scope inspection"!
ES.55: try not to cause the need for scope checking
Reason (reason)
Structures that cannot overflow do not overflow (and usually run faster)
Example (sample)
For (auto& x: v) / / print all elements of v
Cout
