Function objects

From cppreference.com

A function object is any object for which the function call operator is defined.

Contents

Function objects

Arithmetic operations
function object implementing x + y
(class template)
function object implementing x - y
(class template)
function object implementing x * y
(class template)
function object implementing x / y
(class template)
function object implementing x % y
(class template)
function object implementing -x
(class template)
Comparisons
function object implementing x == y
(class template)
function object implementing x != y
(class template)
function object implementing x > y
(class template)
function object implementing x < y
(class template)
function object implementing x >= y
(class template)
function object implementing x <= y
(class template)
Logical operations
function object implementing x && y
(class template)
function object implementing x || y
(class template)
function object implementing !x
(class template)
Bitwise operations
function object implementing x & y
(class template)
function object implementing x | y
(class template)
function object implementing x ^ y
(class template)
Negators
wrapper function object returning the complement of the unary predicate it holds
(class template)
wrapper function object returning the complement of the binary predicate it holds
(class template)
constructs custom std::unary_negate object
(function template)
constructs custom std::binary_negate object
(function template)

[edit] Bind

(C++11)
binds one or more arguments to a function object
(function template)
indicates that an object is std::bind expression or can be used as one
(class template)
indicates that an object is a standard placeholder or can be used as one
(class template)
Defined in namespace std::placeholders
placeholders for the unbound arguments in a std::bind expression
(constant)
Polymorphic function wrappers
(C++11)
binds an object to a pointer to its member function to form independent function object
(function template)
(C++11)
wraps callable object of any type with specified function call signature
(class template)
the exception thrown when invoking an empty std::function
(class)
Reference wrappers
CopyConstructible and CopyAssignable reference wrapper
(class template)
(C++11)
(C++11)
creates a reference_wrapper of type, deduced from its argument
(function template)

Deprecated in C++11

Base
(deprecated)
adaptor-compatible unary function base class
(class template)
(deprecated)
adaptor-compatible binary function base class
(class template)
Binders
(deprecated)
(deprecated)
function object holding a binary function and one of its arguments
(class template)
(deprecated)
(deprecated)
binds one argument to a binary function
(function template)
Function adaptors
adaptor-compatible wrapper for a pointer to unary function
(class template)
adaptor-compatible wrapper for a pointer to binary function
(class template)
(deprecated)
creates an adaptor-compatible function object wrapper from a pointer to function
(function template)
(deprecated)
(deprecated)
(deprecated)
(deprecated)
wrapper for a pointer to nullary member function, callable with a pointer to object
(class template)
(deprecated)
creates a wrapper from a pointer to member function, callable with a pointer to object
(function template)
(deprecated)
(deprecated)
(deprecated)
(deprecated)
wapper for a pointer to nullary or unary member function, callable with a reference to object
(class template)
(deprecated)
creates a wrapper from a pointer to member function, callable with a reference to object
(function template)