[clang] [clang-tidy]Add new check bugprone-casting-through-void (PR #69465)

Piotr Zegar via cfe-commits cfe-commits at lists.llvm.org
Wed Oct 18 10:10:23 PDT 2023


================
@@ -0,0 +1,96 @@
+// RUN: %check_clang_tidy %s bugprone-casting-through-void %t
+
+using V = void*;
+using CV = const void*;
+
+int i = 100;
+double d = 100;
+const int ci = 100;
+const double cd = 100;
+
+void normal_test() {
+  static_cast<int *>(static_cast<void *>(&d));
+  // CHECK-MESSAGES: :[[@LINE-1]]:22: warning: do not cast 'double *' to 'int *' through 'void*' [bugprone-casting-through-void]
+
+  static_cast<int *>(static_cast<V>(&d));
+  // CHECK-MESSAGES: :[[@LINE-1]]:22: warning: do not cast 'double *' to 'int *' through 'void*' [bugprone-casting-through-void]
----------------
PiotrZSL wrote:

add space bettwen void and * to match other types.

https://github.com/llvm/llvm-project/pull/69465


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