test11.cpp: In member function 'void Object1::func2(Data1*, Data1*)': test11.cpp:29:24: warning: Using variable 'ptr1' without checking for null pointer ptr1->val = 300; ^ test11.cpp:29:24: warning: Using variable 'ptr1' without checking for null pointer test11.cpp: In member function 'void Object1::func3(Data1*, Data1*)': test11.cpp:34:31: warning: Using variable 'ptr1' without checking for null pointer if (ptr1 || ptr1->val == 100) ^ test11.cpp:39:24: warning: Using variable 'ptr1' without checking for null pointer ptr1->val = 200; ^ test11.cpp:39:24: warning: Using variable 'ptr1' without checking for null pointer test11.cpp: In member function 'void Object1::func4(Data1*, Data1*)': test11.cpp:44:32: warning: Using variable 'ptr1' without checking for null pointer if (!ptr1 && ptr1->val == 100) ^ test11.cpp:49:24: warning: Using variable 'ptr1' without checking for null pointer ptr1->val = 200; ^ test11.cpp:49:24: warning: Using variable 'ptr1' without checking for null pointer test11.cpp: In member function 'void Object1::func6(Data1*, Data1*)': test11.cpp:70:24: warning: Using variable 'ptr1' without checking for null pointer ptr1->val = 300; ^ test11.cpp:70:24: warning: Using variable 'ptr1' without checking for null pointer test11.cpp:71:24: warning: Using variable 'ptr2' without checking for null pointer ptr2->val = 400; ^ test11.cpp:71:24: warning: Using variable 'ptr2' without checking for null pointer