139 lines
4.3 KiB
Rust
139 lines
4.3 KiB
Rust
// run-pass
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macro_rules! suite {
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($(
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$fn:ident -> $ty:ty { $( $label:ident : $expr:expr, $result:expr; )* }
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)*) => { $(
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fn $fn() {
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$(
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const $label: $ty = $expr;
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assert_eq!($label, $result);
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)*
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}
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)* }
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}
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suite!(
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checked -> Option<i8> {
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// `const_checked_int_methods`
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C1: 5i8.checked_add(2), Some(7);
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C2: 127i8.checked_add(2), None;
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C3: 5i8.checked_sub(2), Some(3);
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C4: (-127i8).checked_sub(2), None;
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C5: 1i8.checked_mul(3), Some(3);
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C6: 5i8.checked_mul(122), None;
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C7: (-127i8).checked_mul(-99), None;
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C8: (i8::MIN + 1).checked_div(-1), Some(127);
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C9: i8::MIN.checked_div(-1), None;
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C10: 1i8.checked_div(0), None;
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C11: 5i8.checked_rem(2), Some(1);
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C12: 5i8.checked_rem(0), None;
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C13: i8::MIN.checked_rem(-1), None;
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C14: 5i8.checked_neg(), Some(-5);
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C15: i8::MIN.checked_neg(), None;
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C16: 0x1i8.checked_shl(4), Some(0x10);
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C17: 0x1i8.checked_shl(129), None;
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C18: 0x10i8.checked_shr(4), Some(0x1);
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C19: 0x10i8.checked_shr(128), None;
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C20: (-5i8).checked_abs(), Some(5);
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C21: i8::MIN.checked_abs(), None;
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// `const_euclidean_int_methods`
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C22: (i8::MIN + 1).checked_div_euclid(-1), Some(127);
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C23: i8::MIN.checked_div_euclid(-1), None;
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C24: (1i8).checked_div_euclid(0), None;
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C25: 5i8.checked_rem_euclid(2), Some(1);
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C26: 5i8.checked_rem_euclid(0), None;
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C27: i8::MIN.checked_rem_euclid(-1), None;
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}
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checked_i128 -> Option<i128> {
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CHK_ADD_I128: i128::MAX.checked_add(1), None;
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CHK_MUL_I128: i128::MIN.checked_mul(-1), None;
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}
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saturating_and_wrapping -> i8 {
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// `const_saturating_int_methods`
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C28: 100i8.saturating_add(1), 101;
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C29: i8::MAX.saturating_add(100), i8::MAX;
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C30: i8::MIN.saturating_add(-1), i8::MIN;
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C31: 100i8.saturating_sub(127), -27;
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C32: i8::MIN.saturating_sub(100), i8::MIN;
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C33: i8::MAX.saturating_sub(-1), i8::MAX;
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C34: 10i8.saturating_mul(12), 120;
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C35: i8::MAX.saturating_mul(10), i8::MAX;
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C36: i8::MIN.saturating_mul(10), i8::MIN;
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C37: 100i8.saturating_neg(), -100;
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C38: (-100i8).saturating_neg(), 100;
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C39: i8::MIN.saturating_neg(), i8::MAX;
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C40: i8::MAX.saturating_neg(), i8::MIN + 1;
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C57: 100i8.saturating_abs(), 100;
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C58: (-100i8).saturating_abs(), 100;
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C59: i8::MIN.saturating_abs(), i8::MAX;
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C60: (i8::MIN + 1).saturating_abs(), i8::MAX;
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// `const_wrapping_int_methods`
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C41: 100i8.wrapping_div(10), 10;
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C42: (-128i8).wrapping_div(-1), -128;
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C43: 100i8.wrapping_rem(10), 0;
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C44: (-128i8).wrapping_rem(-1), 0;
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// `const_euclidean_int_methods`
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C45: 100i8.wrapping_div_euclid(10), 10;
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C46: (-128i8).wrapping_div_euclid(-1), -128;
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C47: 100i8.wrapping_rem_euclid(10), 0;
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C48: (-128i8).wrapping_rem_euclid(-1), 0;
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}
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saturating_and_wrapping_i128 -> i128 {
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SAT_ADD_I128: i128::MAX.saturating_add(1), i128::MAX;
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SAT_MUL_I128: i128::MAX.saturating_mul(2), i128::MAX;
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WRP_ADD_I128: i128::MAX.wrapping_add(1), i128::MIN;
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WRP_MUL_I128: i128::MAX.wrapping_mul(3), i128::MAX-2;
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}
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overflowing -> (i8, bool) {
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// `const_overflowing_int_methods`
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C49: 5i8.overflowing_div(2), (2, false);
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C50: i8::MIN.overflowing_div(-1), (i8::MIN, true);
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C51: 5i8.overflowing_rem(2), (1, false);
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C52: i8::MIN.overflowing_rem(-1), (0, true);
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// `const_euclidean_int_methods`
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C53: 5i8.overflowing_div_euclid(2), (2, false);
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C54: i8::MIN.overflowing_div_euclid(-1), (i8::MIN, true);
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C55: 5i8.overflowing_rem_euclid(2), (1, false);
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C56: i8::MIN.overflowing_rem_euclid(-1), (0, true);
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}
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overflowing_i128 -> (i128, bool) {
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OFL_ADD_I128: i128::MAX.overflowing_add(1), (i128::MIN, true);
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OFL_MUL_I128: i128::MAX.overflowing_mul(3), (i128::MAX-2, true);
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}
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);
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fn main() {
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checked();
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checked_i128();
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saturating_and_wrapping();
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saturating_and_wrapping_i128();
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overflowing();
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overflowing_i128();
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}
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