ftest1: 
ftest2: pointer_type ptr0, 
ftest3: pointer_type ptr0, 
func1: pointer_type ptr1, 
test24.c: In function 'func1':
test24.c:33:5: warning: Using parameter 'ptr1' without checking for null pointer
     ptr1();
     ^
func2: pointer_type ptr1, 
func3: pointer_type ptr1, 
func4: pointer_type ptr1, 
func5: pointer_type ptr1, 
func6: pointer_type ptr1, 
test1: pointer_type w1, pointer_type w2, 
func7: pointer_type w1, pointer_type w2, 
test1: 
func8: pointer_type fptr,