mirror of https://github.com/rust-lang/rust.git
90 lines
1.8 KiB
Rust
90 lines
1.8 KiB
Rust
//@ run-pass
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#![allow(non_camel_case_types)]
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// Binop corner cases
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fn test_nil() {
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assert_eq!((), ());
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assert!(!(() != ()));
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assert!(!(() < ()));
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assert!(() <= ());
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assert!(!(() > ()));
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assert!(() >= ());
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}
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fn test_bool() {
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assert!(!(true < false));
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assert!(!(true <= false));
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assert!(true > false);
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assert!(true >= false);
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assert!(false < true);
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assert!(false <= true);
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assert!(!(false > true));
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assert!(!(false >= true));
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// Bools support bitwise binops
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assert_eq!(false & false, false);
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assert_eq!(true & false, false);
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assert_eq!(true & true, true);
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assert_eq!(false | false, false);
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assert_eq!(true | false, true);
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assert_eq!(true | true, true);
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assert_eq!(false ^ false, false);
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assert_eq!(true ^ false, true);
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assert_eq!(true ^ true, false);
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}
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fn test_ptr() {
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unsafe {
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let p1: *const u8 = ::std::mem::transmute(0_usize);
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let p2: *const u8 = ::std::mem::transmute(0_usize);
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let p3: *const u8 = ::std::mem::transmute(1_usize);
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assert_eq!(p1, p2);
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assert!(p1 != p3);
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assert!(p1 < p3);
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assert!(p1 <= p3);
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assert!(p3 > p1);
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assert!(p3 >= p3);
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assert!(p1 <= p2);
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assert!(p1 >= p2);
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}
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}
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#[derive(PartialEq, Debug)]
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struct p {
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x: isize,
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y: isize,
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}
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fn p(x: isize, y: isize) -> p {
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p {
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x: x,
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y: y
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}
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}
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fn test_class() {
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let q = p(1, 2);
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let mut r = p(1, 2);
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unsafe {
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println!("q = {:x}, r = {:x}",
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(::std::mem::transmute::<*const p, usize>(&q)),
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(::std::mem::transmute::<*const p, usize>(&r)));
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}
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assert_eq!(q, r);
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r.y = 17;
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assert!(r.y != q.y);
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assert_eq!(r.y, 17);
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assert!(q != r);
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}
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pub fn main() {
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test_nil();
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test_bool();
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test_ptr();
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test_class();
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}
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