2 #![allow(overflowing_literals)]
4 // ignore-emscripten i128 doesn't work
10 use test::black_box as b;
17 let z: i128 = 0xABCD_EF;
18 assert_eq!(z * z, 0x734C_C2F2_A521);
19 assert_eq!(z * z * z * z, 0x33EE_0E2A_54E2_59DA_A0E7_8E41);
20 assert_eq!(-z * -z, 0x734C_C2F2_A521);
21 assert_eq!(-z * -z * -z * -z, 0x33EE_0E2A_54E2_59DA_A0E7_8E41);
22 assert_eq!(-z + -z + -z + -z, -0x2AF3_7BC);
23 let k: i128 = -0x1234_5678_9ABC_DEFF_EDCB_A987_6543_210;
24 assert_eq!(k + k, -0x2468_ACF1_3579_BDFF_DB97_530E_CA86_420);
26 assert_eq!(-0x1234_5678_9ABC_DEFF_EDCB_A987_5A86_421, k + z);
27 assert_eq!(-0x1000_0000_0000_0000_0000_0000_0000_000,
28 k + 0x234_5678_9ABC_DEFF_EDCB_A987_6543_210);
29 assert_eq!(-0x6EF5_DE4C_D3BC_2AAA_3BB4_CC5D_D6EE_8, k / 42);
30 assert_eq!(-k, k / -1);
31 assert_eq!(-0x91A2_B3C4_D5E6_F8, k >> 65);
32 assert_eq!(-0xFDB9_7530_ECA8_6420_0000_0000_0000_0000, k << 65);
36 assert_eq!(x as i64, -1);
37 assert_eq!(z as i64, 0xABCD_EF);
38 assert_eq!(k as i64, -0xFEDC_BA98_7654_3210);
39 assert_eq!(k as u128, 0xFEDC_BA98_7654_3210_0123_4567_89AB_CDF0);
40 assert_eq!(-k as u128, 0x1234_5678_9ABC_DEFF_EDCB_A987_6543_210);
41 assert_eq!((-z as f64) as i128, -z);
42 assert_eq!((-z as f32) as i128, -z);
43 assert_eq!((-z as f64 * 16.0) as i128, -z * 16);
44 assert_eq!((-z as f32 * 16.0) as i128, -z * 16);
45 // Same stuff as above, but blackboxed, to force use of intrinsics
50 let z: i128 = b(0xABCD_EF);
51 assert_eq!(z * z, 0x734C_C2F2_A521);
52 assert_eq!(z * z * z * z, 0x33EE_0E2A_54E2_59DA_A0E7_8E41);
53 assert_eq!(-z * -z, 0x734C_C2F2_A521);
54 assert_eq!(-z * -z * -z * -z, 0x33EE_0E2A_54E2_59DA_A0E7_8E41);
55 assert_eq!(-z + -z + -z + -z, -0x2AF3_7BC);
56 let k: i128 = b(-0x1234_5678_9ABC_DEFF_EDCB_A987_6543_210);
57 assert_eq!(k + k, -0x2468_ACF1_3579_BDFF_DB97_530E_CA86_420);
59 assert_eq!(-0x1234_5678_9ABC_DEFF_EDCB_A987_5A86_421, k + z);
60 assert_eq!(-0x1000_0000_0000_0000_0000_0000_0000_000,
61 k + 0x234_5678_9ABC_DEFF_EDCB_A987_6543_210);
62 assert_eq!(-0x6EF5_DE4C_D3BC_2AAA_3BB4_CC5D_D6EE_8, k / 42);
63 assert_eq!(-k, k / -1);
64 assert_eq!(-0x91A2_B3C4_D5E6_F8, k >> 65);
65 assert_eq!(-0xFDB9_7530_ECA8_6420_0000_0000_0000_0000, k << 65);
69 assert_eq!(x as i64, -1);
70 assert_eq!(z as i64, 0xABCD_EF);
71 assert_eq!(k as i64, -0xFEDC_BA98_7654_3210);
72 assert_eq!(k as u128, 0xFEDC_BA98_7654_3210_0123_4567_89AB_CDF0);
73 assert_eq!(-k as u128, 0x1234_5678_9ABC_DEFF_EDCB_A987_6543_210);
74 assert_eq!((-z as f64) as i128, -z);
75 assert_eq!((-z as f32) as i128, -z);
76 assert_eq!((-z as f64 * 16.0) as i128, -z * 16);
77 assert_eq!((-z as f32 * 16.0) as i128, -z * 16);
79 let j: i128 = -(1 << 67);
80 assert_eq!("-147573952589676412928", format!("{}", j));
81 assert_eq!("fffffffffffffff80000000000000000", format!("{:x}", j));
82 assert_eq!("3777777777777777777760000000000000000000000", format!("{:o}", j));
83 assert_eq!("1111111111111111111111111111111111111111111111111111111111111\
84 0000000000000000000000000000000000000000000000000000000000000000000",
86 assert_eq!("-147573952589676412928", format!("{:?}", j));
88 assert_eq!(x, b(x.clone()));
90 assert_eq!((-z).checked_mul(-z), Some(0x734C_C2F2_A521));
91 assert_eq!((z).checked_mul(z), Some(0x734C_C2F2_A521));
92 assert_eq!((k).checked_mul(k), None);
93 let l: i128 = b(i128::min_value());
95 assert_eq!(l.checked_sub(b(2)), None);
96 assert_eq!(l.checked_add(l), None);
97 assert_eq!((-(l + 1)).checked_add(2), None);
98 assert_eq!(l.checked_sub(l), Some(0));
99 assert_eq!(b(1u128).checked_shl(b(127)), Some(1 << 127));
100 assert_eq!(o.checked_shl(b(128)), None);
102 // https://github.com/rust-lang/rust/issues/41228
103 assert_eq!(b(-87559967289969187895646876466835277875_i128) /
104 b(84285771033834995895337664386045050880_i128),
107 // iter-arithmetic traits
108 assert_eq!(10i128, [1i128, 2, 3, 4].iter().sum());
109 assert_eq!(24i128, [1i128, 2, 3, 4].iter().product());