Pointers: |
Things to remember
| Pointers are NOT integers. |
| Always to test whether or not memory allocation
| requests are successful. |
| Only memory that has been allocated using new |
| (or the related routines) should be freed using |
| delete operator. |
| To pass a parameter by variable, specify this |
| parameter that is a pointer, use a pointer to |
| pointer. |
| Always cast the NULL pointer when it is passed |
| as an actual parameter. |
| Do not declare pointer as a global variable. |