binary_negate(3C++) - binary_negate(3C++)
Standard C++ Library Copyright 1998, Rogue Wave Software, Inc.
NAMEbinary_negate
- A function object that returns the complement of the result of its
binary predicate.
SYNOPSIS
#include <functional>
template<class Predicate>
class binary_negate;
DESCRIPTIONbinary_negate is a function object class with a return type for the
function adaptor not2. 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.
Note that not2 works only with function objects that are defined as
subclasses of the class binary_function.
INTERFACE
template<class Predicate>
class binary_negate
: public binary_function<typename
Predicate::first_argument_type,
typename
Predicate::second_argument_type,
bool>
{
public:
typedef typename binary_function<typename
Predicate::first_argument_type, typename
Predicate::second_argument_type,
bool>::second_argument_type second_argument_type;
explicit binary_negate (const Predicate&);
bool operator()
(const typename Predicate::first_argument_type&,
const typename Predicate::second_argument_type&)
const;
};
// Non-member Functions
template <class Predicate>
binary_negate<Predicate> not2 (const Predicate& pred);
CONSTRUCTORS
explicit binary_negate(const Predicate& pred);
Constructs a binary_negate object from predicate pred.
OPERATORS
bool
operator()(const first_argument_type& x,
const second_argument_type& y) const;
Returns the result of pred(x,y).
SEE ALSO
binary_function, not2, unary_negate
Rogue Wave Software 02 Apr 1998 binary_negate(3C++)