RPN(Reverse Polish Notation) Calc

Reverse Polish Notation (RPN) Calc.

Installation

cargo add rpn_lib

Example

fn main() { let src = String::from("1 2 + 3 * "); let a = rpn_lib::eval(src).unwrap(); println!("{}", a); // →9 }

Example2

fn main() { let result = rpn_lib::eval_from_str("1 2 3 * +"); println!("{}", result); // →7 }