rust/src/test/run-pass/deriving-rand.rs
Niko Matsakis 9e3d0b002a librustc: Remove the fallback to int from typechecking.
This breaks a fair amount of code. The typical patterns are:

* `for _ in range(0, 10)`: change to `for _ in range(0u, 10)`;

* `println!("{}", 3)`: change to `println!("{}", 3i)`;

* `[1, 2, 3].len()`: change to `[1i, 2, 3].len()`.

RFC #30. Closes #6023.

[breaking-change]
2014-06-24 17:18:48 -07:00

43 lines
924 B
Rust

// Copyright 2013-2014 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.
#![feature(struct_variant)]
use std::rand;
#[deriving(Rand)]
struct A;
#[deriving(Rand)]
struct B(int, int);
#[deriving(Rand)]
struct C {
x: f64,
y: (u8, u8)
}
#[deriving(Rand)]
enum D {
D0,
D1(uint),
D2 { x: (), y: () }
}
pub fn main() {
// check there's no segfaults
for _ in range(0i, 20) {
rand::random::<A>();
rand::random::<B>();
rand::random::<C>();
rand::random::<D>();
}
}