HP C++ User Documentation

Standard C++ LibraryCopyright 1996, Rogue Wave Software, Inc.

NAME

  not2  - Function adaptor used to reverse the sense of a binary predicate
  function object.

SYNOPSIS

  #include <functional>

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

DESCRIPTION

  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 provides 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.

SEE ALSO

  binary_function, binary_negate, negators, not1, pointer_to_binary_function,
  unary_negate

STANDARDS CONFORMANCE

  ANSI X3J16/ISO WG21 Joint C++ Committee