What is monomorphization in Rust and C++ and how does it affect performance?

Hello colleagues! I just started learning Rust after C++ and came across the term "monomorphization". Honestly, I don't fully understand what it is and why there is so much talk about it.\n\nI know that C++ has templates, and I've heard they work somewhat similarly to generics in Rust. But in C++ I rarely thought about how exactly the compiler processes template code. Now that I'm writing in Rust, I often use generic functions and structures, for example:\n\n```rust\nfn print_value(value: T) {\n println!("Value: {}", value);\n}\n\nfn main() {\n print_value(42);\n print_value("hello");\n print_value(3.14);\n}\n```\n\nI was told that Rust uses monomorphization to work with generics, and this supposedly makes the code faster but increases the binary size. At the same t