use std::convert::TryInto;
use std::fs::File;
use std::io::Read;
use std::path::Path;

pub fn load_small_file <P> (name: P, max_size: u64) -> Vec <u8>
where P: AsRef <Path> 
{
	let mut f = File::open (name).unwrap ();
	let len = f.metadata ().unwrap ().len ();
	
	if len > max_size {
		panic! ("File is too big");
	}
	
	let mut data = vec! [0u8; len.try_into ().unwrap ()];
	
	f.read_exact (&mut data [..]).unwrap ();
	
	data
}