2 #![allow(overflowing_literals)]
7 use test::black_box as b;
14 let z: i128 = 0xABCD_EF;
15 assert_eq!(z * z, 0x734C_C2F2_A521);
16 assert_eq!(z * z * z * z, 0x33EE_0E2A_54E2_59DA_A0E7_8E41);
17 assert_eq!(-z * -z, 0x734C_C2F2_A521);
18 assert_eq!(-z * -z * -z * -z, 0x33EE_0E2A_54E2_59DA_A0E7_8E41);
19 assert_eq!(-z + -z + -z + -z, -0x2AF3_7BC);
20 let k: i128 = -0x1234_5678_9ABC_DEFF_EDCB_A987_6543_210;
21 assert_eq!(k + k, -0x2468_ACF1_3579_BDFF_DB97_530E_CA86_420);
23 assert_eq!(-0x1234_5678_9ABC_DEFF_EDCB_A987_5A86_421, k + z);
24 assert_eq!(-0x1000_0000_0000_0000_0000_0000_0000_000,
25 k + 0x234_5678_9ABC_DEFF_EDCB_A987_6543_210);
26 assert_eq!(-0x6EF5_DE4C_D3BC_2AAA_3BB4_CC5D_D6EE_8, k / 42);
27 assert_eq!(-k, k / -1);
28 assert_eq!(-0x91A2_B3C4_D5E6_F8, k >> 65);
29 assert_eq!(-0xFDB9_7530_ECA8_6420_0000_0000_0000_0000, k << 65);
33 assert_eq!(x as i64, -1);
34 assert_eq!(z as i64, 0xABCD_EF);
35 assert_eq!(k as i64, -0xFEDC_BA98_7654_3210);
36 assert_eq!(k as u128, 0xFEDC_BA98_7654_3210_0123_4567_89AB_CDF0);
37 assert_eq!(-k as u128, 0x1234_5678_9ABC_DEFF_EDCB_A987_6543_210);
38 assert_eq!((-z as f64) as i128, -z);
39 assert_eq!((-z as f32) as i128, -z);
40 assert_eq!((-z as f64 * 16.0) as i128, -z * 16);
41 assert_eq!((-z as f32 * 16.0) as i128, -z * 16);
42 // Same stuff as above, but blackboxed, to force use of intrinsics
47 let z: i128 = b(0xABCD_EF);
48 assert_eq!(z * z, 0x734C_C2F2_A521);
49 assert_eq!(z * z * z * z, 0x33EE_0E2A_54E2_59DA_A0E7_8E41);
50 assert_eq!(-z * -z, 0x734C_C2F2_A521);
51 assert_eq!(-z * -z * -z * -z, 0x33EE_0E2A_54E2_59DA_A0E7_8E41);
52 assert_eq!(-z + -z + -z + -z, -0x2AF3_7BC);
53 let k: i128 = b(-0x1234_5678_9ABC_DEFF_EDCB_A987_6543_210);
54 assert_eq!(k + k, -0x2468_ACF1_3579_BDFF_DB97_530E_CA86_420);
56 assert_eq!(-0x1234_5678_9ABC_DEFF_EDCB_A987_5A86_421, k + z);
57 assert_eq!(-0x1000_0000_0000_0000_0000_0000_0000_000,
58 k + 0x234_5678_9ABC_DEFF_EDCB_A987_6543_210);
59 assert_eq!(-0x6EF5_DE4C_D3BC_2AAA_3BB4_CC5D_D6EE_8, k / 42);
60 assert_eq!(-k, k / -1);
61 assert_eq!(-0x91A2_B3C4_D5E6_F8, k >> 65);
62 assert_eq!(-0xFDB9_7530_ECA8_6420_0000_0000_0000_0000, k << 65);
66 assert_eq!(x as i64, -1);
67 assert_eq!(z as i64, 0xABCD_EF);
68 assert_eq!(k as i64, -0xFEDC_BA98_7654_3210);
69 assert_eq!(k as u128, 0xFEDC_BA98_7654_3210_0123_4567_89AB_CDF0);
70 assert_eq!(-k as u128, 0x1234_5678_9ABC_DEFF_EDCB_A987_6543_210);
71 assert_eq!((-z as f64) as i128, -z);
72 assert_eq!((-z as f32) as i128, -z);
73 assert_eq!((-z as f64 * 16.0) as i128, -z * 16);
74 assert_eq!((-z as f32 * 16.0) as i128, -z * 16);
76 let j: i128 = -(1 << 67);
77 assert_eq!("-147573952589676412928", format!("{}", j));
78 assert_eq!("fffffffffffffff80000000000000000", format!("{:x}", j));
79 assert_eq!("3777777777777777777760000000000000000000000", format!("{:o}", j));
80 assert_eq!("1111111111111111111111111111111111111111111111111111111111111\
81 0000000000000000000000000000000000000000000000000000000000000000000",
83 assert_eq!("-147573952589676412928", format!("{:?}", j));
85 assert_eq!(x, b(x.clone()));
87 assert_eq!((-z).checked_mul(-z), Some(0x734C_C2F2_A521));
88 assert_eq!((z).checked_mul(z), Some(0x734C_C2F2_A521));
89 assert_eq!((k).checked_mul(k), None);
90 let l: i128 = b(i128::MIN);
92 assert_eq!(l.checked_sub(b(2)), None);
93 assert_eq!(l.checked_add(l), None);
94 assert_eq!((-(l + 1)).checked_add(2), None);
95 assert_eq!(l.checked_sub(l), Some(0));
96 assert_eq!(b(1u128).checked_shl(b(127)), Some(1 << 127));
97 assert_eq!(o.checked_shl(b(128)), None);
99 // https://github.com/rust-lang/rust/issues/41228
100 assert_eq!(b(-87559967289969187895646876466835277875_i128) /
101 b(84285771033834995895337664386045050880_i128),
104 // iter-arithmetic traits
105 assert_eq!(10i128, [1i128, 2, 3, 4].iter().sum());
106 assert_eq!(24i128, [1i128, 2, 3, 4].iter().product());