not2

Function Adaptor

• Summary
• Data Type and Member Function Indexes
• Synopsis
• Description
• See Also

A function adaptor used to reverse the sense of a binary predicate function object.

None

#include <functional>
template <class Predicate>
binary_negate<Predicate> not2 (const Predicate& pred);

not2 is a function adaptor, known as a negator, that takes a binary predicate function object as its argument and returns a binary predicate function object that is the complement of the original. binary_negate is a function object class that includes a return type for the not2 negator.

Note that not2 works only with function objects that are defined as subclasses of the class binary_function.

binary_function, binary_negate, Negators, not1, pointer_to_binary_function, unary_negate