3 #![feature(const_checked_int_methods)]
4 #![feature(const_euclidean_int_methods)]
5 #![feature(const_overflowing_int_methods)]
6 #![feature(const_wrapping_int_methods)]
10 $fn:ident -> $ty:ty { $( $label:ident : $expr:expr, $result:expr; )* }
14 const $label: $ty = $expr;
15 assert_eq!($label, $result);
22 checked -> Option<i8> {
23 // `const_checked_int_methods`
24 C1: 5i8.checked_add(2), Some(7);
25 C2: 127i8.checked_add(2), None;
27 C3: 5i8.checked_sub(2), Some(3);
28 C4: (-127i8).checked_sub(2), None;
30 C5: 1i8.checked_mul(3), Some(3);
31 C6: 5i8.checked_mul(122), None;
32 C7: (-127i8).checked_mul(-99), None;
34 C8: (i8::MIN + 1).checked_div(-1), Some(127);
35 C9: i8::MIN.checked_div(-1), None;
36 C10: 1i8.checked_div(0), None;
38 C11: 5i8.checked_rem(2), Some(1);
39 C12: 5i8.checked_rem(0), None;
40 C13: i8::MIN.checked_rem(-1), None;
42 C14: 5i8.checked_neg(), Some(-5);
43 C15: i8::MIN.checked_neg(), None;
45 C16: 0x1i8.checked_shl(4), Some(0x10);
46 C17: 0x1i8.checked_shl(129), None;
48 C18: 0x10i8.checked_shr(4), Some(0x1);
49 C19: 0x10i8.checked_shr(128), None;
52 C20: (-5i8).checked_abs(), Some(5);
53 C21: i8::MIN.checked_abs(), None;
55 // `const_euclidean_int_methods`
56 C22: (i8::MIN + 1).checked_div_euclid(-1), Some(127);
57 C23: i8::MIN.checked_div_euclid(-1), None;
58 C24: (1i8).checked_div_euclid(0), None;
60 C25: 5i8.checked_rem_euclid(2), Some(1);
61 C26: 5i8.checked_rem_euclid(0), None;
62 C27: i8::MIN.checked_rem_euclid(-1), None;
64 checked_i128 -> Option<i128> {
65 CHK_ADD_I128: i128::MAX.checked_add(1), None;
66 CHK_MUL_I128: i128::MIN.checked_mul(-1), None;
69 saturating_and_wrapping -> i8 {
70 // `const_saturating_int_methods`
71 C28: 100i8.saturating_add(1), 101;
72 C29: i8::MAX.saturating_add(100), i8::MAX;
73 C30: i8::MIN.saturating_add(-1), i8::MIN;
75 C31: 100i8.saturating_sub(127), -27;
76 C32: i8::MIN.saturating_sub(100), i8::MIN;
77 C33: i8::MAX.saturating_sub(-1), i8::MAX;
79 C34: 10i8.saturating_mul(12), 120;
80 C35: i8::MAX.saturating_mul(10), i8::MAX;
81 C36: i8::MIN.saturating_mul(10), i8::MIN;
83 C37: 100i8.saturating_neg(), -100;
84 C38: (-100i8).saturating_neg(), 100;
85 C39: i8::MIN.saturating_neg(), i8::MAX;
86 C40: i8::MAX.saturating_neg(), i8::MIN + 1;
88 C57: 100i8.saturating_abs(), 100;
89 C58: (-100i8).saturating_abs(), 100;
90 C59: i8::MIN.saturating_abs(), i8::MAX;
91 C60: (i8::MIN + 1).saturating_abs(), i8::MAX;
93 // `const_wrapping_int_methods`
94 C41: 100i8.wrapping_div(10), 10;
95 C42: (-128i8).wrapping_div(-1), -128;
97 C43: 100i8.wrapping_rem(10), 0;
98 C44: (-128i8).wrapping_rem(-1), 0;
100 // `const_euclidean_int_methods`
101 C45: 100i8.wrapping_div_euclid(10), 10;
102 C46: (-128i8).wrapping_div_euclid(-1), -128;
104 C47: 100i8.wrapping_rem_euclid(10), 0;
105 C48: (-128i8).wrapping_rem_euclid(-1), 0;
107 saturating_and_wrapping_i128 -> i128 {
108 SAT_ADD_I128: i128::MAX.saturating_add(1), i128::MAX;
109 SAT_MUL_I128: i128::MAX.saturating_mul(2), i128::MAX;
111 WRP_ADD_I128: i128::MAX.wrapping_add(1), i128::MIN;
112 WRP_MUL_I128: i128::MAX.wrapping_mul(3), i128::MAX-2;
115 overflowing -> (i8, bool) {
116 // `const_overflowing_int_methods`
117 C49: 5i8.overflowing_div(2), (2, false);
118 C50: i8::MIN.overflowing_div(-1), (i8::MIN, true);
120 C51: 5i8.overflowing_rem(2), (1, false);
121 C52: i8::MIN.overflowing_rem(-1), (0, true);
123 // `const_euclidean_int_methods`
124 C53: 5i8.overflowing_div_euclid(2), (2, false);
125 C54: i8::MIN.overflowing_div_euclid(-1), (i8::MIN, true);
127 C55: 5i8.overflowing_rem_euclid(2), (1, false);
128 C56: i8::MIN.overflowing_rem_euclid(-1), (0, true);
130 overflowing_i128 -> (i128, bool) {
131 OFL_ADD_I128: i128::MAX.overflowing_add(1), (i128::MIN, true);
132 OFL_MUL_I128: i128::MAX.overflowing_mul(3), (i128::MAX-2, true);
139 saturating_and_wrapping();
140 saturating_and_wrapping_i128();