C FAQ's
C FAQ's
There are four types of storage classes. ? Automatic : Variable used as a local variable. This is the default one. Initial value of variable is garbage value without initialization. ? Extern : Variable used as a local variable. Retains its value during next function call. ? Regiter : Variable used as a local variable. May be stored in register if possible. Default initial value is garbage value. ? Static : Variable used as a global variable.