1 files changed, 18 insertions, 0 deletions
diff --git a/src/tools/clippy/src/docs/neg_multiply.txt b/src/tools/clippy/src/docs/neg_multiply.txt
new file mode 100644
index 000000000..4e8b096eb
--- /dev/null
+++ b/src/tools/clippy/src/docs/neg_multiply.txt
@@ -0,0 +1,18 @@
+### What it does
+Checks for multiplication by -1 as a form of negation.
+
+### Why is this bad?
+It's more readable to just negate.
+
+### Known problems
+This only catches integers (for now).
+
+### Example
+```
+let a = x * -1;
+```
+
+Use instead:
+```
+let a = -x;
+```
+\ No newline at end of file