C-Reserved Keywords

The following names are reserved by the C language. Their meaning is already defined, and they cannot be re-defined to mean anything else.

auto else long switch
break enum register typedef
case        extern return union
char          float short unsigned
const   for        signed   void
continue goto        sizeof   volatile
default  if         static while
do         int         struct _Packed
double
While naming your functions and variables, other than these names, you can choose any names of
reasonable length for variables, functions etc.