Other operators

From Cppreference

C++ Standard Library
Language Utilities library Strings library Containers library Algorithms library Iterators library Numerics library Input/output library Localizations library Regular expressions library (C++11) Atomic operations library (C++11) Thread support library (C++11)
C++ language
General topics Preprocessor Keywords ASCII chart Escape sequences Flow control if statement switch statement for loop for loop on a range (C++11) while loop do-while loop continue statement break statement return statement Functions declaring functions exception specifications noexcept specifier inline specifier Exceptions throw expression try-catch block Namespaces declaring namespaces namespace aliales Types fundamental types compound types function types decltype specifier Specifiers cv specifiers storage duration specifiers constexpr specifier auto specifier Operators operators operator precedence alternative representations Utilities standard conversions static_cast conversion dynamic_cast conversion const_cast conversion reinterpret_cast conversion new expression delete expression typedef declaration type alias declaration attributes Classes declaring classes access specifiers granting access for non-members initializer_list Special member functions default constructor copy constructor move constructor assignment operator move operator destructor

Operator name	Syntax	Over​load​able	Prototype examples (for class T)
			Inside class definition	Outside class definition
function call	a(a1, a2)	Yes	R T::operator()(Arg1 &a1, Arg2 &a2, ... ...);	N/A
comma	a, b	Yes	T2& T::operator,(T2 &b);	T2& operator,(const T &a, T2 &b);
conversion	(type) a	Yes	operator type()	N/A
ternary conditional	a ? b : c	No	N/A	N/A

[edit] Explanation

function call operator provides function semantics for any object.

conversion operator converts given type to another type. The name of the operator must be the same as the type intended to be returned.

ternary conditional operator checks the boolean value of the first expression and replaces entire operator clause with the second or the third expression depending on the resulting value. For example, {{{1}}} is equivalent to {{{1}}}

[edit] See also

Operator precedence

Common operators
assignment	increment decrement	arithmetic	logical	comparison	member access	other
a = b a = rvalue a += b a -= b a *= b a /= b a %= b a &= b a |= b a ^= b a <<= b a >>= b	++a --a a++ a--	+a -a a + b a - b a * b a / b a % b ~a a & b a | b a ^ b a << b a >> b	!a a && b a || b	a == b a != b a < b a > b a <= b a >= b	a[b] *a &a a->b a.b a->*b a.*b	a(...) a, b (type) a ? :
Special operators
static_cast converts one type to another compatible type dynamic_cast converts virtual base class to derived class const_cast converts type to compatible type with different cv qualifiers reinterpret_cast converts type to incompatible type new allocates memory delete deallocates memory sizeof queries the size of a type sizeof... queries the size of a parameter pack (C++11 feature) typeid queries the type information of a type noexcept checks if an expression can throw an exception (C++11 feature) alignof queries alignment requirements of a type (C++11 feature)