================
@@ -0,0 +1,42 @@
+.. title:: clang-tidy - performance-bool-bitwise-operation
+
+performance-bool-bitwise-operation
+==================================
+
+Finds potentially inefficient use of bitwise operators such as ``&``, ``|``
+and their compound analogues on Boolean values where logical operators like
+``&&`` and ``||`` would be more appropriate.
+
+Bitwise operations on Booleans can incur unnecessary performance overhead due
+to implicit integer conversions and missed short-circuit evaluation.
+
+.. code-block:: c++
+
+ bool invalid = false;
+ invalid |= x > limit.x; // warning: use logical operator instead of bitwise
one for bool
+ invalid |= y > limit.y; // warning: use logical operator instead of bitwise
one for bool
+ invalid |= z > limit.z; // warning: use logical operator instead of bitwise
one for bool
+ if (invalid) {
+ // error handling
+ }
+
+These 3 warnings suggest to assign result of logical ``||`` operation instead
+of using ``|=`` operator:
+
+.. code-block:: c++
+
+ bool invalid = false;
+ invalid = invalid || x > limit.x;
+ invalid = invalid || y > limit.x;
+ invalid = invalid || z > limit.z;
+ if (invalid) {
+ // error handling
+ }
+
+Options
+-------
+
+.. option:: StrictMode
+
+ Disabling this option promotes more fixit hints even when they might
----------------
EugeneZelenko wrote:
```suggestion
Disabling this option promotes more fix-it hints even when they might
```
https://github.com/llvm/llvm-project/pull/142324
_______________________________________________
cfe-commits mailing list
[email protected]
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
