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C++ keywords can't be used as identifier in your C++ programs, as they are reserved words in C++ library and used to perform an internal operation.
| Keywords | |||
|---|---|---|---|
| and | and_eq | asm | auto |
| bitand | bitor | bool | break |
| case | catch | char | class |
| compl | const | const_cast | continue |
| default | delete | do | double |
| dynamic_cast | else | enum | explicit |
| export | extern | false | float |
| for | friend | goto | if |
| inline | int | long | mutable |
| namespace | new | not | not_eq |
| operator | or | or_eq | private |
| protected | public | register | reinterpret_cast |
| return | short | signed | sizeof |
| static | static_cast | struct | switch |
| template | this | throw | true |
| try | typedef | typeid | typename |
| union | unsigned | using | virtual |
| void | volatile | wchar_t | while |
| xor | xor_eq | - | - |