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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:06:31 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:06:31 +0000 |
| commit | 2ff14448863ac1a1dd9533461708e29aae170c2d (patch) | |
| tree | 85b9fea2bbfe3f06473cfa381eed11f273b57c5c /library/core/tests/num/int_macros.rs | |
| parent | Adding debian version 1.64.0+dfsg1-1. (diff) | |
| download | rustc-2ff14448863ac1a1dd9533461708e29aae170c2d.tar.xz rustc-2ff14448863ac1a1dd9533461708e29aae170c2d.zip | |
Adding debian version 1.65.0+dfsg1-2.debian/1.65.0+dfsg1-2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
| -rw-r--r-- | library/core/tests/num/int_macros.rs | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/library/core/tests/num/int_macros.rs b/library/core/tests/num/int_macros.rs index 8b84a78e6..18c55e43a 100644 --- a/library/core/tests/num/int_macros.rs +++ b/library/core/tests/num/int_macros.rs @@ -338,6 +338,32 @@ macro_rules! int_module { assert_eq!(MIN.checked_next_multiple_of(-3), None); assert_eq!(MIN.checked_next_multiple_of(-1), Some(MIN)); } + + #[test] + fn test_carrying_add() { + assert_eq!($T::MAX.carrying_add(1, false), ($T::MIN, true)); + assert_eq!($T::MAX.carrying_add(0, true), ($T::MIN, true)); + assert_eq!($T::MAX.carrying_add(1, true), ($T::MIN + 1, true)); + assert_eq!($T::MAX.carrying_add(-1, false), ($T::MAX - 1, false)); + assert_eq!($T::MAX.carrying_add(-1, true), ($T::MAX, false)); // no intermediate overflow + assert_eq!($T::MIN.carrying_add(-1, false), ($T::MAX, true)); + assert_eq!($T::MIN.carrying_add(-1, true), ($T::MIN, false)); // no intermediate overflow + assert_eq!((0 as $T).carrying_add($T::MAX, true), ($T::MIN, true)); + assert_eq!((0 as $T).carrying_add($T::MIN, true), ($T::MIN + 1, false)); + } + + #[test] + fn test_borrowing_sub() { + assert_eq!($T::MIN.borrowing_sub(1, false), ($T::MAX, true)); + assert_eq!($T::MIN.borrowing_sub(0, true), ($T::MAX, true)); + assert_eq!($T::MIN.borrowing_sub(1, true), ($T::MAX - 1, true)); + assert_eq!($T::MIN.borrowing_sub(-1, false), ($T::MIN + 1, false)); + assert_eq!($T::MIN.borrowing_sub(-1, true), ($T::MIN, false)); // no intermediate overflow + assert_eq!($T::MAX.borrowing_sub(-1, false), ($T::MIN, true)); + assert_eq!($T::MAX.borrowing_sub(-1, true), ($T::MAX, false)); // no intermediate overflow + assert_eq!((0 as $T).borrowing_sub($T::MIN, false), ($T::MIN, true)); + assert_eq!((0 as $T).borrowing_sub($T::MIN, true), ($T::MAX, false)); + } } }; } |