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C++ Functional Library - not_equal_to
Description
It is a function object class for non-equality comparison and binary function object class whose call returns whether its two arguments compare not equal (as returned by operator operator!=).
Declaration
Following is the declaration for std::not_equal_to.
template <class T> struct not_equal_to;
C++11
template <class T> struct not_equal_to;
Parameters
T − It is a type of the arguments and return type of the functional call.
Return Value
none
Exceptions
noexcep − It doesn't throw any exceptions.
Example
In below example explains about std::not_equal_to.
#include <iostream> #include <functional> #include <algorithm> int main () { int numbers[]={10,20,30,40,50}; int* pt = std::adjacent_find (numbers, numbers+5, std::not_equal_to<int>()) +1; std::cout << " Different element is " << *pt << '\n'; return 0; }
Let us compile and run the above program, this will produce the following result −
Different element is 20
functional.htm
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