title C26462 ms.date 03/22/2018 ms.topic reference f1_keywords C26462 helpviewer_keywords C26462 description CppCoreCheck rule C26462 that enforces C++ Core Guidelines Con.4 C26462 USE_CONST_POINTER_FOR_VARIABLE The value pointed to by '%variable%' is assigned only once, mark it as a pointer to const (con.4). Pointers to variables whose values remain unchanged should be marked as const. See also C++ Core Guidelines con.4. Example void useVal(int val); void function1(int* ptr) { int* p = ptr; // C26462, the value pointed to by p is unmodified ptr = nullptr; useVal(*p); }