================ @@ -0,0 +1,72 @@ +.. title:: clang-tidy - bugprone-conflicting-global-accesses + +bugprone-conflicting-global-accesses +==================================== + +Finds conflicting accesses on global variables. + +Modifying twice or reading and modifying a memory location without a +defined sequence of the operations is either undefined behavior or has +unspecified order. This checker is similar to the -Wunsequenced clang warning, +however it only looks at global variables and therefore can find conflicting +actions recursively inside functions as well. + +For example:: + + int a = 0; + int b = (a++) - a; // This is flagged by -Wunsequenced. + +However global variables allow for more complex scenarios that +-Wunsequenced doesn't detect. E.g. :: + + int globalVar = 0; ---------------- vbvictor wrote:
ditto code-block https://github.com/llvm/llvm-project/pull/130421 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
