d21336ee0a
Being able to index into the bytes of a string encourages poor UTF-8 hygiene. To get a view of `&[u8]` from either a `String` or `&str` slice, use the `as_bytes()` method. Closes #12710. [breaking-change]
59 lines
1.2 KiB
Rust
59 lines
1.2 KiB
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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pub fn main() {
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let x = "hello";
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let v = "hello";
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let y : &str = "there";
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println!("{}", x);
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println!("{}", y);
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assert_eq!(x.as_bytes()[0], 'h' as u8);
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assert_eq!(x.as_bytes()[4], 'o' as u8);
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let z : &str = "thing";
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assert_eq!(v, x);
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assert!(x != z);
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let a = "aaaa";
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let b = "bbbb";
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let c = "cccc";
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let cc = "ccccc";
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println!("{}", a);
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assert!(a < b);
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assert!(a <= b);
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assert!(a != b);
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assert!(b >= a);
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assert!(b > a);
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println!("{}", b);
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assert!(a < c);
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assert!(a <= c);
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assert!(a != c);
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assert!(c >= a);
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assert!(c > a);
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println!("{}", c);
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assert!(c < cc);
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assert!(c <= cc);
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assert!(c != cc);
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assert!(cc >= c);
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assert!(cc > c);
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println!("{}", cc);
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}
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