exmergesortbykey

Rust external merge sort library using sortbycached_key.

Usage

toml [dependencies] ex_merge_sort_by_key = "0.1"

```rust use std::fs::File; use std::io;

fn main() { let f = File::open("README.md").unwrap(); let capacity = 1024; exmergesortbykey::sortbykey(f, io::stdout(), capacity, |line| line.len()).unwrap(); } ```