Function named factorial() takes input of positive integer and shows its factorial If a positive integer is not entered, the function will keep on taking an input until a positive integer is entered. To reduce the size, u32 variables are used hence you can enter from 0 ~ 12 to get factorial. Function will return the factorial of the value entered by you.
To use this library you have to add following line in [dependencies] section of Cargo.toml
factorialfunction = "0.1.0"
Your cargo.toml file should look like this: ``` . . . edition = "2018"
[dependencies] factorialfunction = "0.1.0" ```
In src/main.rs you can use like this:
use factorialfunction;
fn main() {
println!("Hello, world!");
factorialfunction::factorial();
}
Following will also work:
use factorialfunction::factorial;
fn main() {
println!("Hello, world!");
factorial();
}
now cargo run for results