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How many keywords are there in C++?
There are a total of 95 reserved words in C++. The reserved words of C++ may be conveniently placed into several groups. In the first group, we put those that were also present in the C programming language and have been carried over into C++. There are 32 of these.
There are another 30 reserved words that were not in C, are therefore new to C++
There are 11 C++ reserved words that are not essential when the standard ASCII character set is being used, but they have been added to provide more readable alternatives for some of the C++ operators, and also to facilitate programming with character sets that lack characters needed by C++.
Here is a list of all these reserved words:
| alignas (since C++11) | alignof (since C++11) | and |
| and_eq | asm | atomic_cancel (TM TS) |
| atomic_commit (TM TS) | atomic_noexcept (TM TS) | auto(1) |
| bitand | bitor | bool |
| break | case | catch |
| char | char16_t (since C++11) | char32_t (since C++11) |
| class(1) | compl | concept (since C++20) |
| const | constexpr (since C++11) | const_cast |
| continue | co_await (coroutines TS) | co_return (coroutines TS) |
| co_yield (coroutines TS) | decltype (since C++11) | default(1) |
| delete(1) | do | double |
| dynamic_cast | else | enum |
| explicit | export(1) | extern(1) |
| false | float | for |
| friend | goto | if |
| import (modules TS) | inline(1) | int |
| long | module (modules TS) | mutable(1) |
| namespace | new | noexcept (since C++11) |
| not | not_eq | nullptr (since C++11) |
| operator | or | or_eq |
| private | protected | public |
| register(2) | reinterpret_cast | requires (since C++20) |
| return | short | signed |
| sizeof(1) | static | static_assert (since C++11) |
| static_cast | struct(1) | switch |
| synchronized (TM TS) | template | this |
| thread_local (since C++11) | throw | true |
| try | typedef | typeid |
| typename | union | unsigned |
| using(1) | virtual | void |
| volatile | wchar_t | while |
| xor | xor_eq |
Updated on: 30-Jul-2019
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