Rust Move vs Copy

I’ve been looking at the Rust Ownership model . The skinny is that Rust has made mostly opposite decisions from C++. Copy vs Move An assignment in Rust is by default, a move. The original variable is declared as invalid and using it will net you a hard error at compile time. The example used in the docs is: lets1=String::from("hello");lets2=s1;println!("{}, world!",s1);That last line will not compile because s1 is no longer valid.

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