std-macro-extensions 1.0.1

A collection of macro extensions for Rust's standard library data structures, simplifying the creation and manipulation of common collections such as HashMap, Vec, and more.
Documentation 
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/// Creates a new `Rc` (Reference Counted) instance.
///
/// This macro takes a value and wraps it in an `Rc`, providing shared ownership of the value.
/// Multiple references to the same value can be made, and the value will be dropped when the last reference goes out of scope.
#[macro_export]
macro_rules! rc {
    ($val:expr) => {
        std::rc::Rc::new($val)
    };
}