copy_from_str

Extension methods for copying strings into a string.

This crate provides copy_from_str function which can be used to mutate Rust strings. It works similarly to [copy_from_slice] from standard library except it is for strings.

Examples

```rust use copyfromstr::CopyFromStrExt;

fn makeasciiuppercase(mut input: &mut str) { let mut buffer = [0; 4]; while let Some(ch) = input.chars().next() { let endposition = ch.lenutf8(); let src = ch.toasciiuppercase().encodeutf8(&mut buffer); input[..endposition].copyfromstr(src); input = &mut {input}[end_position..]; } }

let mut str = String::from("Hello, world! 💯"); makeasciiuppercase(&mut str); assert_eq!(str, "HELLO, WORLD! 💯"); ```