1 // Copyright 2016 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
13 #![feature(i128_type, test)]
16 use test::black_box as b;
23 let z: i128 = 0xABCD_EF;
24 assert_eq!(z * z, 0x734C_C2F2_A521);
25 assert_eq!(z * z * z * z, 0x33EE_0E2A_54E2_59DA_A0E7_8E41);
26 assert_eq!(-z * -z, 0x734C_C2F2_A521);
27 assert_eq!(-z * -z * -z * -z, 0x33EE_0E2A_54E2_59DA_A0E7_8E41);
28 assert_eq!(-z + -z + -z + -z, -0x2AF3_7BC);
29 let k: i128 = -0x1234_5678_9ABC_DEFF_EDCB_A987_6543_210;
30 assert_eq!(k + k, -0x2468_ACF1_3579_BDFF_DB97_530E_CA86_420);
32 assert_eq!(-0x1234_5678_9ABC_DEFF_EDCB_A987_5A86_421, k + z);
33 assert_eq!(-0x1000_0000_0000_0000_0000_0000_0000_000,
34 k + 0x234_5678_9ABC_DEFF_EDCB_A987_6543_210);
35 assert_eq!(-0x6EF5_DE4C_D3BC_2AAA_3BB4_CC5D_D6EE_8, k / 42);
36 assert_eq!(-k, k / -1);
37 assert_eq!(-0x91A2_B3C4_D5E6_F8, k >> 65);
38 assert_eq!(-0xFDB9_7530_ECA8_6420_0000_0000_0000_0000, k << 65);
42 assert_eq!(x as i64, -1);
43 assert_eq!(z as i64, 0xABCD_EF);
44 assert_eq!(k as i64, -0xFEDC_BA98_7654_3210);
45 assert_eq!(k as u128, 0xFEDC_BA98_7654_3210_0123_4567_89AB_CDF0);
46 assert_eq!(-k as u128, 0x1234_5678_9ABC_DEFF_EDCB_A987_6543_210);
47 assert_eq!((-z as f64) as i128, -z);
48 assert_eq!((-z as f32) as i128, -z);
49 assert_eq!((-z as f64 * 16.0) as i128, -z * 16);
50 assert_eq!((-z as f32 * 16.0) as i128, -z * 16);
51 // Same stuff as above, but blackboxed, to force use of intrinsics
56 let z: i128 = b(0xABCD_EF);
57 assert_eq!(z * z, 0x734C_C2F2_A521);
58 assert_eq!(z * z * z * z, 0x33EE_0E2A_54E2_59DA_A0E7_8E41);
59 assert_eq!(-z * -z, 0x734C_C2F2_A521);
60 assert_eq!(-z * -z * -z * -z, 0x33EE_0E2A_54E2_59DA_A0E7_8E41);
61 assert_eq!(-z + -z + -z + -z, -0x2AF3_7BC);
62 let k: i128 = b(-0x1234_5678_9ABC_DEFF_EDCB_A987_6543_210);
63 assert_eq!(k + k, -0x2468_ACF1_3579_BDFF_DB97_530E_CA86_420);
65 assert_eq!(-0x1234_5678_9ABC_DEFF_EDCB_A987_5A86_421, k + z);
66 assert_eq!(-0x1000_0000_0000_0000_0000_0000_0000_000,
67 k + 0x234_5678_9ABC_DEFF_EDCB_A987_6543_210);
68 assert_eq!(-0x6EF5_DE4C_D3BC_2AAA_3BB4_CC5D_D6EE_8, k / 42);
69 assert_eq!(-k, k / -1);
70 assert_eq!(-0x91A2_B3C4_D5E6_F8, k >> 65);
71 assert_eq!(-0xFDB9_7530_ECA8_6420_0000_0000_0000_0000, k << 65);
75 assert_eq!(x as i64, -1);
76 assert_eq!(z as i64, 0xABCD_EF);
77 assert_eq!(k as i64, -0xFEDC_BA98_7654_3210);
78 assert_eq!(k as u128, 0xFEDC_BA98_7654_3210_0123_4567_89AB_CDF0);
79 assert_eq!(-k as u128, 0x1234_5678_9ABC_DEFF_EDCB_A987_6543_210);
80 assert_eq!((-z as f64) as i128, -z);
81 assert_eq!((-z as f32) as i128, -z);
82 assert_eq!((-z as f64 * 16.0) as i128, -z * 16);
83 assert_eq!((-z as f32 * 16.0) as i128, -z * 16);
85 let j: i128 = -(1 << 67);
86 assert_eq!("-147573952589676412928", format!("{}", j));
87 assert_eq!("fffffffffffffff80000000000000000", format!("{:x}", j));
88 assert_eq!("3777777777777777777760000000000000000000000", format!("{:o}", j));
89 assert_eq!("1111111111111111111111111111111111111111111111111111111111111\
90 0000000000000000000000000000000000000000000000000000000000000000000",
92 assert_eq!("-147573952589676412928", format!("{:?}", j));
94 assert_eq!(x, b(x.clone()));
96 assert_eq!((-z).checked_mul(-z), Some(0x734C_C2F2_A521));
97 assert_eq!((z).checked_mul(z), Some(0x734C_C2F2_A521));
98 assert_eq!((k).checked_mul(k), None);
99 let l: i128 = b(i128::min_value());
101 assert_eq!(l.checked_sub(b(2)), None);
102 assert_eq!(l.checked_add(l), None);
103 assert_eq!((-(l + 1)).checked_add(2), None);
104 assert_eq!(l.checked_sub(l), Some(0));
105 assert_eq!(b(1u128).checked_shl(b(127)), Some(1 << 127));
106 assert_eq!(o.checked_shl(b(128)), None);
108 // https://github.com/rust-lang/rust/issues/41228
109 assert_eq!(b(-87559967289969187895646876466835277875_i128) /
110 b(84285771033834995895337664386045050880_i128),
113 // iter-arithmetic traits
114 assert_eq!(10i128, [1i128, 2, 3, 4].iter().sum());
115 assert_eq!(24i128, [1i128, 2, 3, 4].iter().product());