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Diffstat (limited to 'src/tools/clippy/src/docs/cmp_nan.txt')
| -rw-r--r-- | src/tools/clippy/src/docs/cmp_nan.txt | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/tools/clippy/src/docs/cmp_nan.txt b/src/tools/clippy/src/docs/cmp_nan.txt new file mode 100644 index 000000000..e2ad04d93 --- /dev/null +++ b/src/tools/clippy/src/docs/cmp_nan.txt @@ -0,0 +1,16 @@ +### What it does +Checks for comparisons to NaN. + +### Why is this bad? +NaN does not compare meaningfully to anything – not +even itself – so those comparisons are simply wrong. + +### Example +``` +if x == f32::NAN { } +``` + +Use instead: +``` +if x.is_nan() { } +```
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