/
range.rs
54 lines (45 loc) · 1.34 KB
/
range.rs
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// Copyright 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.
// Test range syntax.
fn foo() -> int { 42 }
// Test that range syntax works in return statements
fn return_range_to() -> ::std::ops::RangeTo<i32> { return ..1; }
fn return_full_range() -> ::std::ops::RangeFull { return ..; }
pub fn main() {
let mut count = 0;
for i in 0u..10 {
assert!(i >= 0 && i < 10);
count += i;
}
assert!(count == 45);
let mut count = 0;
let mut range = 0u..10;
for i in range {
assert!(i >= 0 && i < 10);
count += i;
}
assert!(count == 45);
let mut count = 0;
let mut rf = 3u..;
for i in rf.take(10) {
assert!(i >= 3 && i < 13);
count += i;
}
assert!(count == 75);
let _ = 0u..4+4-3;
let _ = 0..foo();
let _ = ..42u;
// Test we can use two different types with a common supertype.
let x = &42;
{
let y = 42;
let _ = x..&y;
}
}