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Diffstat (limited to 'tests/ui/numbers-arithmetic/u128.rs')
| -rw-r--r-- | tests/ui/numbers-arithmetic/u128.rs | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/tests/ui/numbers-arithmetic/u128.rs b/tests/ui/numbers-arithmetic/u128.rs new file mode 100644 index 00000000000..d7e28055b21 --- /dev/null +++ b/tests/ui/numbers-arithmetic/u128.rs @@ -0,0 +1,119 @@ +// run-pass + +#![feature(test)] + +extern crate test; +use test::black_box as b; + +fn main() { + let x: u128 = 0xFFFF_FFFF_FFFF_FFFF__FFFF_FFFF_FFFF_FFFF; + assert_eq!(0, !x); + assert_eq!(0, !x); + let y: u128 = 0xFFFF_FFFF_FFFF_FFFF__FFFF_FFFF_FFFF_FFFE; + assert_eq!(!1, y); + assert_eq!(x, y | 1); + assert_eq!(0xFAFF_0000_FF8F_0000__FFFF_0000_FFFF_FFFE, + y & + 0xFAFF_0000_FF8F_0000__FFFF_0000_FFFF_FFFF); + let z: u128 = 0xABCD_EF; + assert_eq!(z * z, 0x734C_C2F2_A521); + assert_eq!(z * z * z * z, 0x33EE_0E2A_54E2_59DA_A0E7_8E41); + assert_eq!(z + z + z + z, 0x2AF3_7BC); + let k: u128 = 0x1234_5678_9ABC_DEFF_EDCB_A987_6543_210; + assert_eq!(k + k, 0x2468_ACF1_3579_BDFF_DB97_530E_CA86_420); + assert_eq!(0, k - k); + assert_eq!(0x1234_5678_9ABC_DEFF_EDCB_A987_5A86_421, k - z); + assert_eq!(0x1000_0000_0000_0000_0000_0000_0000_000, + k - 0x234_5678_9ABC_DEFF_EDCB_A987_6543_210); + assert_eq!(0x6EF5_DE4C_D3BC_2AAA_3BB4_CC5D_D6EE_8, k / 42); + assert_eq!(0, k % 42); + assert_eq!(15, z % 42); + assert_eq!(0x169D_A8020_CEC18, k % 0x3ACB_FE49_FF24_AC); + assert_eq!(0x91A2_B3C4_D5E6_F7, k >> 65); + assert_eq!(0xFDB9_7530_ECA8_6420_0000_0000_0000_0000, k << 65); + assert!(k > z); + assert!(y > k); + assert!(y < x); + assert_eq!(x as u64, !0); + assert_eq!(z as u64, 0xABCD_EF); + assert_eq!(k as u64, 0xFEDC_BA98_7654_3210); + assert_eq!(k as i128, 0x1234_5678_9ABC_DEFF_EDCB_A987_6543_210); + assert_eq!((z as f64) as u128, z); + assert_eq!((z as f32) as u128, z); + assert_eq!((z as f64 * 16.0) as u128, z * 16); + assert_eq!((z as f32 * 16.0) as u128, z * 16); + let l :u128 = 432 << 100; + assert_eq!((l as f32) as u128, l); + assert_eq!((l as f64) as u128, l); + // formatting + let j: u128 = 1 << 67; + assert_eq!("147573952589676412928", format!("{}", j)); + assert_eq!("80000000000000000", format!("{:x}", j)); + assert_eq!("20000000000000000000000", format!("{:o}", j)); + assert_eq!("10000000000000000000000000000000000000000000000000000000000000000000", + format!("{:b}", j)); + assert_eq!("340282366920938463463374607431768211455", + format!("{}", u128::MAX)); + assert_eq!("147573952589676412928", format!("{:?}", j)); + // common traits + assert_eq!(x, b(x.clone())); + // overflow checks + assert_eq!((z).checked_mul(z), Some(0x734C_C2F2_A521)); + assert_eq!((k).checked_mul(k), None); + let l: u128 = b(u128::MAX - 10); + let o: u128 = b(17); + assert_eq!(l.checked_add(b(11)), None); + assert_eq!(l.checked_sub(l), Some(0)); + assert_eq!(o.checked_sub(b(18)), None); + assert_eq!(b(1u128).checked_shl(b(127)), Some(1 << 127)); + assert_eq!(o.checked_shl(b(128)), None); + + // Test cases for all udivmodti4 branches. + // case "0X/0X" + assert_eq!(b(0x69545bd57727c050_u128) / + b(0x3283527a3350d88c_u128), + 2u128); + // case "0X/KX" + assert_eq!(b(0x0_8003c9c50b473ae6_u128) / + b(0x1_283e8838c30fa8f4_u128), + 0u128); + // case "K0/K0" + assert_eq!(b(0xc43f42a207978720_u128 << 64) / + b(0x098e62b74c23cf1a_u128 << 64), + 20u128); + // case "KK/K0" for power-of-two D. + assert_eq!(b(0xa9008fb6c9d81e42_0e25730562a601c8_u128) / + b(1u128 << 120), + 169u128); + // case "KK/K0" with N >= D (https://github.com/rust-lang/rust/issues/41228). + assert_eq!(b(0xe4d26e59f0640328_06da5b06efe83a41_u128) / + b(0x330fcb030ea4447c_u128 << 64), + 4u128); + assert_eq!(b(3u128 << 64 | 1) / + b(3u128 << 64), + 1u128); + // case "KK/K0" with N < D. + assert_eq!(b(0x6655c9fb66ca2884_e2d1dfd470158c62_u128) / + b(0xb35b667cab7e355b_u128 << 64), + 0u128); + // case "KX/0K" for power-of-two D. + assert_eq!(b(0x3e49dd84feb2df59_7b2f97d93a253969_u128) / + b(1u128 << 4), + 0x03e49dd84feb2df5_97b2f97d93a25396_u128); + // case "KX/0K" in general. + assert_eq!(b(0x299692b3a1dae5bd_6162e6f489d2620e_u128) / + b(0x900b6f027571d6f7_u128), + 0x49e95f54b0442578_u128); + // case "KX/KK" with N >= D. + assert_eq!(b(0xc7b889180b67b07d_bc1a3c88783d35b5_u128) / + b(0x1d7e69f53160b9e2_60074771e852f244_u128), + 6u128); + // case "KX/KK" with N < D. + assert_eq!(b(0x679289ac23bb334f_36144401cf882172_u128) / + b(0x7b0b271b64865f05_f54a7b72746c062f_u128), + 0u128); + + // iter-arithmetic traits + assert_eq!(10u128, [1u128, 2, 3, 4].iter().sum()); + assert_eq!(24u128, [1u128, 2, 3, 4].iter().product()); +} |