For example we can easily convert a str into a String
>#![allow(unused)]
>fn main() {
>let my_str = "hello";
>let my_string = String::from(my_str);
>}
We can do similar for defining a conversion for our own type.
>use std::convert::From;
>#[derive(Debug)]
>struct Number {
>value: i32,
>}
>impl From for Number {
>fn from(item: i32) -> Self {
>Number { value: item }
>}
>}
>fn main() {
>let num = Number::from(30);
>println!("My number is {:?}", num);
>}
>הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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The Into trait is simply the reciprocal of the From trait. That is, if you have implemented the From trait for your type, Into will call it when necessary.
Using the Into trait will typically require specification of the type to convert into as the compiler is unable to determine this most of the time. However this is a small trade-off considering we get the functionality for free.
>use std::convert::From;
>#[derive(Debug)]
>struct Number {
>value: i32,
>}
>impl From for Number {
>fn from(item: i32) -> Self {
>Number { value: item }
>}
>}
>fn main() {
>let int = 5;
>// Try removing the type declaration
>let num: Number = int.into();
>println!("My number is {:?}", num);
>}
>הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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