77 lines
1.9 KiB
Rust
77 lines
1.9 KiB
Rust
//@ run-pass
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#![allow(non_upper_case_globals)]
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#![allow(overflowing_literals)]
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// Testing shifts for various combinations of integers
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// Issue #1570
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pub fn main() {
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test_misc();
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test_expr();
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test_const();
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}
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fn test_misc() {
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assert_eq!(1 << 1 << 1 << 1 << 1 << 1, 32);
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}
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fn test_expr() {
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let v10 = 10 as usize;
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let v4 = 4 as u8;
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let v2 = 2 as u8;
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assert_eq!(v10 >> v2 as usize, v2 as usize);
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assert_eq!(v10 << v4 as usize, 160 as usize);
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let v10 = 10 as u8;
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let v4 = 4 as usize;
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let v2 = 2 as usize;
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assert_eq!(v10 >> v2 as usize, v2 as u8);
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assert_eq!(v10 << v4 as usize, 160 as u8);
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let v10 = 10 as isize;
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let v4 = 4 as i8;
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let v2 = 2 as i8;
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assert_eq!(v10 >> v2 as usize, v2 as isize);
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assert_eq!(v10 << v4 as usize, 160 as isize);
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let v10 = 10 as i8;
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let v4 = 4 as isize;
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let v2 = 2 as isize;
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assert_eq!(v10 >> v2 as usize, v2 as i8);
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assert_eq!(v10 << v4 as usize, 160 as i8);
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let v10 = 10 as usize;
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let v4 = 4 as isize;
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let v2 = 2 as isize;
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assert_eq!(v10 >> v2 as usize, v2 as usize);
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assert_eq!(v10 << v4 as usize, 160 as usize);
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}
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fn test_const() {
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static r1_1: usize = 10_usize >> 2_usize;
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static r2_1: usize = 10_usize << 4_usize;
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assert_eq!(r1_1, 2 as usize);
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assert_eq!(r2_1, 160 as usize);
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static r1_2: u8 = 10u8 >> 2_usize;
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static r2_2: u8 = 10u8 << 4_usize;
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assert_eq!(r1_2, 2 as u8);
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assert_eq!(r2_2, 160 as u8);
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static r1_3: isize = 10 >> 2_usize;
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static r2_3: isize = 10 << 4_usize;
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assert_eq!(r1_3, 2 as isize);
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assert_eq!(r2_3, 160 as isize);
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static r1_4: i8 = 10i8 >> 2_usize;
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static r2_4: i8 = 10i8 << 4_usize;
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assert_eq!(r1_4, 2 as i8);
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assert_eq!(r2_4, 160 as i8);
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static r1_5: usize = 10_usize >> 2_usize;
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static r2_5: usize = 10_usize << 4_usize;
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assert_eq!(r1_5, 2 as usize);
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assert_eq!(r2_5, 160 as usize);
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}
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