C++ vs Rust: Crafting an Unwrap-Like Function Inspired by Rust

Understanding std::cref, std::ref, and std::reference_wrapper in C++

In C++ programming, there are situations where we need to pass references without making copies or use constant objects where references are needed. To address these issues, the C++ standard library provides three useful tools: std::cref, std::ref, and std::reference_wrapper. This article delves into the purposes, distinctions, and practical applications of these tools.