A suffix ! means that you are using a macro. In this case there is no difference, but macros are needed for most uses of print functions since you generally want variable number of arguments, which can only be done with macros in rust.
jack. On Fri, Mar 14, 2014 at 3:52 PM, Renato Lenzi <[email protected]> wrote: > Simple question: > > println("hello"); > > or > > println!("hello!"); > > Why (or when) should we use one or the other form?? Differences? > > Regards. > > _______________________________________________ > Rust-dev mailing list > [email protected] > https://mail.mozilla.org/listinfo/rust-dev > _______________________________________________ Rust-dev mailing list [email protected] https://mail.mozilla.org/listinfo/rust-dev
