blob: 70515a088e2de597ba2589d16806f43c702671c2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// Extending Num and using inherited static methods
// pretty-expanded FIXME #23616
#![feature(core)]
use std::cmp::PartialOrd;
pub trait NumCast: Sized {
fn from(i: i32) -> Option<Self>;
}
pub trait Num {
fn from_int(i: isize) -> Self;
fn gt(&self, other: &Self) -> bool;
}
pub trait NumExt: NumCast + PartialOrd { }
fn greater_than_one<T:NumExt>(n: &T) -> bool {
n.gt(&NumCast::from(1).unwrap())
}
pub fn main() {}
|
