Shulou(Shulou.com)06/01 Report--

This article mainly introduces "how C++ uses gsl::index". In daily operation, I believe many people have doubts about how C++ uses gsl::index. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the doubts about "how C++ uses gsl::index". Next, please follow the editor to study!

ES.107: don't use unsigned subscript, use gsl::index is better

Reason (reason)

In order to avoid the problems caused by the mixed use of signed and unsigned numbers. It is beneficial to achieve better optimization and error checking. Avoid pitfalls caused by auto and int types.

Example, bad (negative example)

Vector vec = / *... * /

For (int I = 0; I < vec.size (); I + = 2) / / may not be big enough

Cout

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.