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| author | Philipp Krones <hello@philkrones.com> | 2022-09-09 13:36:26 +0200 |
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| committer | Philipp Krones <hello@philkrones.com> | 2022-09-09 13:36:26 +0200 |
| commit | 98bf99e2f8cf8b357d63a67ce67d5fc5ceef8b3c (patch) | |
| tree | 9737ff22b257f29282e7538d9ecb264451a3c1c0 /src/docs/modulo_arithmetic.txt | |
| parent | 854f751b263dfac06dc3f635f8a9f92b8bc51da6 (diff) | |
| download | rust-98bf99e2f8cf8b357d63a67ce67d5fc5ceef8b3c.tar.gz rust-98bf99e2f8cf8b357d63a67ce67d5fc5ceef8b3c.zip | |
Merge commit 'b52fb5234cd7c11ecfae51897a6f7fa52e8777fc' into clippyup
Diffstat (limited to 'src/docs/modulo_arithmetic.txt')
| -rw-r--r-- | src/docs/modulo_arithmetic.txt | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/docs/modulo_arithmetic.txt b/src/docs/modulo_arithmetic.txt new file mode 100644 index 00000000000..ff7296f3c5b --- /dev/null +++ b/src/docs/modulo_arithmetic.txt @@ -0,0 +1,15 @@ +### What it does +Checks for modulo arithmetic. + +### Why is this bad? +The results of modulo (%) operation might differ +depending on the language, when negative numbers are involved. +If you interop with different languages it might be beneficial +to double check all places that use modulo arithmetic. + +For example, in Rust `17 % -3 = 2`, but in Python `17 % -3 = -1`. + +### Example +``` +let x = -17 % 3; +``` \ No newline at end of file |