Punctuation

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These are the punctuation symbols in C++. The meaning of each symbol is detailed in the linked pages.

{ }

[ ]

#

##

( )

;

  • Indicate the end of

:

...

  • In the parameter list of a function declarator or lambda expression (since C++11) or user-defined deduction guide (since C++17), signify a variadic function.
  • In a catch-clause, signify catch-all handler.
  • In a macro definition, signify a variadic macro. (since C++11)
  • Indicate pack declaration and expansion. (since C++11)

?

::

  • Scope resolution operator in

.

.*

->

->*

~

!

+

-

*

/

%

^

&

|

=

+=

-=

*=

/=

%=

^=

&=

|=

==

!=

<

>

<=

>=


<=> (since C++20)

&&

||

<<

>>

<<=

>>=

++

--

,

  • In a static_assert declaration, separate the arguments. (since C++11)

References

  • C++20 standard (ISO/IEC 14882:2020):
  • 5.12 Operators and punctuators [lex.operators]
  • C++17 standard (ISO/IEC 14882:2017):
  • 5.12 Operators and punctuators [lex.operators]
  • C++14 standard (ISO/IEC 14882:2014):
  • 2.13 Operators and punctuators [lex.operators]
  • C++11 standard (ISO/IEC 14882:2011):
  • 2.13 Operators and punctuators [lex.operators]
  • C++03 standard (ISO/IEC 14882:2003):
  • 2.12 Operators and punctuators [lex.operators]
  • C++98 standard (ISO/IEC 14882:1998):
  • 2.12 Operators and punctuators [lex.operators]

See also

Alternative representations alternative spellings for certain operators