| // Copyright 2016 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. |
| |
| #![allow(unused_comparisons)] |
| #![allow(dead_code)] |
| #![allow(unused_mut)] |
| // Test range syntax. |
| |
| |
| fn foo() -> isize { 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 0_usize..10 { |
| assert!(i >= 0 && i < 10); |
| count += i; |
| } |
| assert_eq!(count, 45); |
| |
| let mut count = 0; |
| let mut range = 0_usize..10; |
| for i in range { |
| assert!(i >= 0 && i < 10); |
| count += i; |
| } |
| assert_eq!(count, 45); |
| |
| let mut count = 0; |
| let mut rf = 3_usize..; |
| for i in rf.take(10) { |
| assert!(i >= 3 && i < 13); |
| count += i; |
| } |
| assert_eq!(count, 75); |
| |
| let _ = 0_usize..4+4-3; |
| let _ = 0..foo(); |
| |
| let _ = { &42..&100 }; // references to literals are OK |
| let _ = ..42_usize; |
| |
| // Test we can use two different types with a common supertype. |
| let x = &42; |
| { |
| let y = 42; |
| let _ = x..&y; |
| } |
| } |