<s>
This	O
is	O
a	O
list	O
of	O
operators	O
in	O
the	O
C	B-Language
and	O
C++	B-Language
programming	I-Language
languages	I-Language
.	O
</s>
<s>
All	O
the	O
operators	O
listed	O
exist	O
in	O
C++	B-Language
;	O
the	O
column	O
"	O
Included	O
in	O
C	B-Language
"	O
,	O
states	O
whether	O
an	O
operator	O
is	O
also	O
present	O
in	O
C	B-Language
.	O
Note	O
that	O
C	B-Language
does	O
not	O
support	O
operator	O
overloading	O
.	O
</s>
<s>
When	O
not	O
overloaded	O
,	O
for	O
the	O
operators	O
&&	O
,	O
||	O
,	O
and	O
,	O
(	O
the	O
comma	B-Language
operator	I-Language
)	O
,	O
there	O
is	O
a	O
sequence	B-Application
point	I-Application
after	O
the	O
evaluation	O
of	O
the	O
first	O
operand	O
.	O
</s>
<s>
C++	B-Language
also	O
contains	O
the	O
type	O
conversion	O
operators	O
const_cast	O
,	O
static_cast	O
,	O
dynamic_cast	O
,	O
and	O
reinterpret_cast	O
.	O
</s>
<s>
Most	O
of	O
the	O
operators	O
available	O
in	O
C	B-Language
and	O
C++	B-Language
are	O
also	O
available	O
in	O
other	O
C-family	B-Language
languages	O
such	O
as	O
C#	B-Application
,	O
D	B-Application
,	O
Java	B-Language
,	O
Perl	B-Language
,	O
and	O
PHP	B-Application
with	O
the	O
same	O
precedence	O
,	O
associativity	O
,	O
and	O
semantics	O
.	O
</s>
<s>
For	O
the	O
purposes	O
of	O
these	O
tables	O
,	O
a	O
,	O
b	B-Language
,	O
and	O
c	B-Language
represent	O
valid	O
values	O
(	O
literals	O
,	O
values	O
from	O
variables	O
,	O
or	O
return	O
value	O
)	O
,	O
object	O
names	O
,	O
or	O
lvalues	O
,	O
as	O
appropriate	O
.	O
</s>
<s>
All	O
arithmetic	O
operators	O
exist	O
in	O
C	B-Language
and	O
C++	B-Language
and	O
can	O
be	O
overloaded	O
in	O
C++	B-Language
.	O
</s>
<s>
Operator	O
name	O
Syntax	O
C++	B-Language
prototype	O
examples	O
As	O
member	O
of	O
K	O
Outside	O
class	O
definitions	O
Addition	O
Subtraction	O
a	O
-	O
b	B-Language
Unary	O
plus	O
(	O
integer	O
promotion	O
)	O
+a	O
Unary	O
minus	O
(	O
additive	O
inverse	O
)	O
-a	O
Multiplication	O
a	O
*	O
b	B-Language
Division	O
a	O
/	O
b	B-Language
Modulo	O
(	O
integer	O
remainder	O
)	O
a	O
%	O
b	B-Language
Increment	O
Prefix	O
++a	O
Postfix	O
a++	O
Note	O
:	O
C++	B-Language
uses	O
the	O
unnamed	O
dummy-parameter	O
to	O
differentiate	O
between	O
prefix	O
and	O
postfix	O
increment	O
operators	O
.	O
</s>
<s>
Decrement	O
Prefix	O
--a	O
Postfix	O
a--	O
Note	O
:	O
C++	B-Language
uses	O
the	O
unnamed	O
dummy-parameter	O
to	O
differentiate	O
between	O
prefix	O
and	O
postfix	O
decrement	O
operators	O
.	O
</s>
<s>
All	O
comparison	O
operators	O
can	O
be	O
overloaded	O
in	O
C++	B-Language
.	O
</s>
<s>
Operator	O
name	O
Syntax	O
Includedin	O
C	B-Language
Prototype	O
examples	O
As	O
member	O
of	O
K	O
Outside	O
class	O
definitions	O
Equal	O
to	O
a	O
==	O
b	B-Language
width	O
=	O
"	O
8%	O
"	O
Not	O
equal	O
to	O
a	O
!=	O
b	B-Language
Greater	O
than	O
a	O
>	O
b	B-Language
Less	O
than	O
a	O
< b      Greater than or equal to  a >= b      Less than or equal to  a <= b     Three-way comparison a <=>	O
b	B-Language
rowspan	O
=	O
"	O
2	O
"	O
The	O
operator	O
has	O
a	O
total	O
of	O
3	O
possible	O
return	O
types	O
:	O
std::weak_ordering	O
,	O
std::strong_ordering	O
and	O
std::partial_ordering	O
to	O
which	O
they	O
all	O
are	O
convertible	O
to	O
.	O
</s>
<s>
All	O
logical	O
operators	O
exist	O
in	O
C	B-Language
and	O
C++	B-Language
and	O
can	O
be	O
overloaded	O
in	O
C++	B-Language
,	O
albeit	O
the	O
overloading	O
of	O
the	O
logical	O
AND	O
and	O
logical	O
OR	O
is	O
discouraged	O
,	O
because	O
as	O
overloaded	O
operators	O
they	O
behave	O
as	O
ordinary	O
function	O
calls	O
,	O
which	O
means	O
that	O
both	O
of	O
their	O
operands	O
are	O
evaluated	O
,	O
so	O
they	O
lose	O
their	O
well-used	O
and	O
expected	O
short-circuit	O
evaluation	O
property	O
.	O
</s>
<s>
Operator	O
name	O
Syntax	O
C++	B-Language
prototype	O
examples	O
As	O
member	O
of	O
K	O
Outside	O
class	O
definitions	O
Logical	O
negation	O
(	O
NOT	O
)	O
!	O
anot	O
a	O
Logical	O
AND	O
a	O
&&	O
ba	O
and	O
b	B-Language
Logical	O
OR	O
a	O
||	O
ba	O
?	O
</s>
<s>
All	O
bitwise	O
operators	O
exist	O
in	O
C	B-Language
and	O
C++	B-Language
and	O
can	O
be	O
overloaded	O
in	O
C++	B-Language
.	O
</s>
<s>
?	O
-acompl	O
a	O
Bitwise	O
AND	O
a	O
&	O
b	B-Language
Bitwise	O
OR	O
a	O
|	O
ba	O
?	O
</s>
<s>
ba	O
bitor	O
b	B-Language
Bitwise	O
XOR	O
a	O
^	O
ba	O
?	O
</s>
<s>
All	O
assignment	O
expressions	O
exist	O
in	O
C	B-Language
and	O
C++	B-Language
and	O
can	O
be	O
overloaded	O
in	O
C++	B-Language
.	O
</s>
<s>
For	O
the	O
given	O
operators	O
the	O
semantic	O
of	O
the	O
built-in	O
combined	O
assignment	O
expression	O
a	O
⊚	O
=	O
b	B-Language
is	O
equivalent	O
to	O
a	O
=	O
a	O
⊚	O
b	B-Language
,	O
except	O
that	O
a	O
is	O
evaluated	O
only	O
once	O
.	O
</s>
<s>
Operator	O
name	O
Syntax	O
C++	B-Language
prototype	O
examples	O
As	O
member	O
of	O
K	O
Outside	O
class	O
definitions	O
Direct	O
assignment	O
Addition	O
assignment	O
a	O
+	O
=	O
b	B-Language
Subtraction	O
assignment	O
a	O
-	O
=	O
b	B-Language
Multiplication	O
assignment	O
a	O
*	O
=	O
b	B-Language
Division	O
assignment	O
a	O
/	O
=	O
b	B-Language
Modulo	O
assignment	O
a	O
%	O
=	O
b	B-Language
Bitwise	O
AND	O
assignment	O
a	O
&	O
=	O
b	B-Language
Bitwise	O
OR	O
assignment	O
a	O
|=	O
ba	O
?	O
</s>
<s>
!=	O
ba	O
or_eq	O
b	B-Language
Bitwise	O
XOR	O
assignment	O
a	O
^	O
=	O
ba	O
?	O
</s>
<s>
Operator	O
name	O
Syntax	O
Can	O
overload	O
in	O
C++	B-Language
Includedin	O
C	B-Language
C++	B-Language
prototype	O
examples	O
As	O
member	O
of	O
K	O
Outside	O
class	O
definitions	O
Subscript	B-Application
a[b]a	O
<	O
:b:>a	O
??	O
( b	O
??	O
)	O
</s>
<s>
width	O
=	O
"	O
8%	O
"	O
width	O
=	O
"	O
8%	O
"	O
width	O
=	O
"	O
25%	O
"	O
Indirection	O
(	O
"	O
object	O
pointed	O
to	O
by	O
a	O
"	O
)	O
*	O
a	O
Address-of	O
(	O
"	O
address	O
of	O
a	O
"	O
)	O
&	O
abitand	O
a	O
Structure	O
dereference	O
(	O
"	O
member	O
b	B-Language
of	O
object	O
pointed	O
to	O
by	O
a	O
"	O
)	O
a->b	O
Structure	O
reference	O
(	O
"	O
member	O
b	B-Language
of	O
object	O
a	O
"	O
)	O
a.b	O
colspan	O
=	O
"	O
2	O
"	O
Member	O
selected	O
by	O
pointer-to-member	O
b	B-Language
of	O
object	O
pointed	O
to	O
by	O
a	O
a->*b	O
Member	O
of	O
object	O
a	O
selected	O
by	O
pointer-to-member	O
b	B-Language
a	O
.	O
</s>
<s>
Operator	O
name	O
Syntax	O
Can	O
overload	O
in	O
C++	B-Language
Includedin	O
C	B-Language
Prototype	O
examples	O
As	O
member	O
of	O
K	O
Outside	O
class	O
definitions	O
Function	O
callSee	O
Function	B-Language
object	I-Language
.	O
</s>
<s>
a(a1, a2 )	O
width	O
=	O
"	O
8%	O
"	O
width	O
=	O
"	O
8%	O
"	O
width	O
=	O
"	O
25%	O
"	O
Comma	B-Language
a	O
,	O
b	B-Language
Ternary	O
conditional	O
a	O
?	O
</s>
<s>
b	B-Language
:	O
c	B-Language
colspan	O
=	O
"	O
2	O
"	O
Scope	O
resolution	O
a::b	O
colspan	O
=	O
"	O
2	O
"	O
User-defined	O
literalssince	O
C++11	O
"	O
a	O
"	O
_b	O
Sizeof	B-Language
sizeof	B-Language
asizeof	O
(	O
type	O
)	O
colspan	O
=	O
"	O
2	O
"	O
Size	O
of	O
parameter	O
packsince	O
C++11	O
sizeof	B-Language
...	O
colspan	O
=	O
"	O
2	O
"	O
Alignofsince	O
C++11	O
alignof(type )	O
or	O
_Alignof(type )	O
colspan	O
=	O
"	O
2	O
"	O
Type	O
identification	O
typeid(a )	O
typeid(type )	O
colspan	O
=	O
"	O
2	O
"	O
Conversion	O
(	O
C-style	O
cast	O
)	O
(	O
type	O
)	O
a	O
Conversion	O
type(a )	O
Note	O
:	O
behaves	O
like	O
const_cast/static_cast/reinterpret_castExplicit	O
type	O
conversion	O
in	O
C++	B-Language
static_cast	O
conversion	O
static_castxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx1( a	O
)	O
rowspan	O
=	O
"	O
2	O
"	O
rowspan	O
=	O
"	O
2	O
"	O
since	O
C++11	O
Note	O
:	O
for	O
user-defined	O
conversions	O
,	O
the	O
return	O
type	O
implicitly	O
and	O
necessarily	O
matches	O
the	O
operator	O
name	O
.	O
</s>
<s>
dynamic	O
cast	O
conversion	O
dynamic_castxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx1( a	O
)	O
colspan	O
=	O
"	O
2	O
"	O
Allocate	B-Language
storage	I-Language
new	O
type	O
Allocate	B-Language
storage	I-Language
(	O
array	O
)	O
new	O
type[n]new	O
type	O
<	O
:n:>new	O
type	O
??	O
( n	O
??	O
)	O
</s>
<s>
Deallocate	B-Language
storage	I-Language
delete	B-Language
a	O
Deallocate	B-Language
storage	I-Language
(	O
array	O
)	O
delete[]	O
adeletexxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx1	O
adelete	O
??	O
(	O
??	O
)	O
</s>
<s>
The	O
following	O
is	O
a	O
table	O
that	O
lists	O
the	O
precedence	O
and	O
associativity	O
of	O
all	O
the	O
operators	O
in	O
the	O
C	B-Language
and	O
C++	B-Language
languages	I-Language
.	O
</s>
<s>
The	O
syntax	O
of	O
expressions	O
in	O
C	B-Language
and	O
C++	B-Language
is	O
specified	O
by	O
a	O
phrase	O
structure	O
grammar	O
.	O
</s>
<s>
For	O
the	O
ISO	O
C	B-Language
1999	O
standard	O
,	O
section	O
6.5.6	O
note	O
71	O
states	O
that	O
the	O
C	B-Language
grammar	O
provided	O
by	O
the	O
specification	O
defines	O
the	O
precedence	O
of	O
the	O
C	B-Language
operators	I-Language
,	O
and	O
also	O
states	O
that	O
the	O
operator	O
precedence	O
resulting	O
from	O
the	O
grammar	O
closely	O
follows	O
the	O
specification	O
's	O
section	O
ordering	O
:	O
</s>
<s>
"	O
The	O
 [ C ] 	O
syntax	O
[	O
i.e.	O
,	O
grammar ]	O
specifies	O
the	O
precedence	O
of	O
operators	O
in	O
the	O
evaluation	O
of	O
an	O
expression	O
,	O
which	O
is	O
the	O
same	O
as	O
the	O
order	O
of	O
the	O
major	O
subclauses	O
of	O
this	O
subclause	O
,	O
highest	O
precedence	O
first.	O
"	O
</s>
<s>
In	O
particular	O
,	O
note	O
that	O
the	O
ternary	O
operator	O
allows	O
any	O
arbitrary	O
expression	O
as	O
its	O
middle	O
operand	O
,	O
despite	O
being	O
listed	O
as	O
having	O
higher	O
precedence	O
than	O
the	O
assignment	O
and	O
comma	B-Language
operators	I-Language
.	O
</s>
<s>
b	B-Language
,	O
c	B-Language
:	O
d	B-Application
is	O
interpreted	O
as	O
a	O
?	O
</s>
<s>
(	O
b	B-Language
,	O
c	B-Language
)	O
:	O
d	B-Application
,	O
and	O
not	O
as	O
the	O
meaningless	O
(	O
a	O
?	O
</s>
<s>
b	B-Language
)	O
,	O
(	O
c	B-Language
:	O
d	B-Application
)	O
.	O
</s>
<s>
Also	O
,	O
note	O
that	O
the	O
immediate	O
,	O
unparenthesized	O
result	O
of	O
a	O
C	B-Language
cast	O
expression	O
cannot	O
be	O
the	O
operand	O
of	O
sizeof	B-Language
.	O
</s>
<s>
Therefore	O
,	O
sizeof	B-Language
(	O
int	O
)	O
*	O
x	O
is	O
interpreted	O
as	O
(sizeof(int )	O
)	O
*	O
x	O
and	O
not	O
sizeof	B-Language
((int )	O
*	O
x	O
)	O
.	O
</s>
<s>
highest	O
::	O
Scope	O
resolution	O
(	O
C++	B-Language
only	O
)	O
None	O
2	O
++	O
Postfix	O
increment	O
Left-to-right	O
--	O
Postfix	O
decrement	O
(	O
)	O
Function	O
call	O
 [  ] 	O
Array	O
subscripting	O
.	O
</s>
<s>
Element	O
selection	O
by	O
reference	O
->	O
Element	O
selection	O
through	O
pointer	O
typeid( )	O
Run-time	B-Application
type	I-Application
information	I-Application
(	O
C++	B-Language
only	O
)	O
(	O
see	O
typeid	O
)	O
const_cast	O
Type	O
cast	O
(	O
C++	B-Language
only	O
)	O
(	O
see	O
const_cast	O
)	O
dynamic_cast	O
Type	O
cast	O
(	O
C++	B-Language
only	O
)	O
(	O
see	O
dynamic	O
cast	O
)	O
reinterpret_cast	O
Type	O
cast	O
(	O
C++	B-Language
only	O
)	O
(	O
see	O
reinterpret_cast	O
)	O
static_cast	O
Type	O
cast	O
(	O
C++	B-Language
only	O
)	O
(	O
see	O
static_cast	O
)	O
3	O
++	O
Prefix	O
increment	O
Right-to-left	O
--	O
Prefix	O
decrement	O
+	O
Unary	O
plus	O
-	O
Unary	O
minus	O
!	O
</s>
<s>
Logical	O
NOT	O
~	O
Bitwise	O
NOT	O
(	O
Ones	O
 '	O
Complement	O
)	O
(	O
type	O
)	O
Type	O
cast	O
*	O
Indirection	O
(	O
dereference	O
)	O
&	O
Address-of	O
sizeof	B-Language
Sizeof	B-Language
_Alignof	O
Alignment	O
requirement	O
(	O
since	O
C11	O
)	O
new	O
,	O
new[]	O
Dynamic	O
memory	O
allocation	O
(	O
C++	B-Language
only	O
)	O
delete	B-Language
,	O
delete[]	O
Dynamic	O
memory	O
deallocation	O
(	O
C++	B-Language
only	O
)	O
4	O
.	O
</s>
<s>
*	O
Pointer	O
to	O
member	O
(	O
C++	B-Language
only	O
)	O
Left-to-right	O
->*	O
Pointer	O
to	O
member	O
(	O
C++	B-Language
only	O
)	O
5	O
*	O
Multiplication	O
Left-to-right	O
/	O
Division	O
%	O
Modulo	O
(	O
remainder	O
)	O
6	O
+	O
Addition	O
Left-to-right	O
-	O
Subtraction	O
7	O
<< Bitwise left shift Left-to-right >> Bitwise right shift 8 <=> Three-way comparison (Introduced in C++20 - C++ only )  Left-to-right 9 < Less than Left-to-right <= Less than or equal to > Greater than >	O
=	O
Greater	O
than	O
or	O
equal	O
to	O
10	O
==	O
Equal	O
to	O
Left-to-right	O
!=	O
Not	O
equal	O
to	O
11	O
&	O
Bitwise	O
AND	O
Left-to-right	O
12	O
^	O
Bitwise	O
XOR	O
(	O
exclusive	O
or	O
)	O
Left-to-right	O
13	O
|	O
Bitwise	O
OR	O
(	O
inclusive	O
or	O
)	O
Left-to-right	O
14	O
&&	O
Logical	O
AND	O
Left-to-right	O
15	O
||	O
Logical	O
OR	O
Left-to-right	O
16	O
co_await	O
Coroutine	O
processing	O
(	O
C++	B-Language
only	O
)	O
Right-to-left	O
co_yield	O
17	O
?	O
</s>
