not_equal_to<T> not_equal_to<T> Category: functors Component type: type Description Not_equal_to<T> is a function object. Specifically, it is an Adaptable Binary Predicate, which means it is a function object that tests the truth or falsehood of some condition. If f is an object of class not_equal_to<T> and x and y are objects of class T, then f(x,y) returns true if x != y and false otherwise. Example Finds the first nonzero element in a list. list<int> L; ... list<int>::iterator first_nonzero = find_if(L.begin(), L.end(), bind2nd(not_equal_to<int>(), 0)); assert(first_nonzero == L.end() || *first_nonzero != 0); Definition Defined in the standard header functional, and in the nonstandard backward-compatibility header function.h. Template parameters Parameter Description Default T The type of not_equal_to's arguments.   Model of Adaptable Binary Predicate, DefaultConstructible Type requirements T is EqualityComparable. Public base classes binary_function<T, T, bool>. Members Member Where defined Description first_argument_type Adaptable Binary Predicate The type of the first argument: T second_argument_type Adaptable Binary Predicate The type of the second argument: T result_type Adaptable Binary Predicate The type of the result: bool not_equal_to() DefaultConstructible The default constructor. bool operator()(const T& x, const T& y) Binary Function Function call operator. The return value is x != y. New members All of not_equal_to's members are defined in the Adaptable Binary Predicate and DefaultConstructible requirements. Not_equal_to does not introduce any new members. Notes See also The function object overview, Adaptable Binary Predicate, equal_to, greater, less, greater_equal, less_equal Copyright © 1999 Silicon Graphics, Inc. All Rights Reserved. TrademarkInformation