binary_negate (STL/CLR)

The template class describes a functor that, when called, returns the logical NOT of its stored two-argument functor. You use it specify a function object in terms of its stored functor.

template<typename Fun>
    ref class binary_negate
    { // wrap operator()
public:
    typedef Fun stored_function_type;
    typedef typename Fun::first_argument_type first_argument_type;
    typedef typename Fun::second_argument_type second_argument_type;
    typedef bool result_type;
    typedef Microsoft::VisualC::StlClr::BinaryDelegate<
        first_argument_type, second_argument_type, result_type>
        delegate_type;

    explicit binary_negate(Fun% functor);
    binary_negate(binary_negate<Arg>% right);

    result_type operator()(first_argument_type left,
        second_argument_type right);
    operator delegate_type^();
    };

Parameters

• Fun
  The type of the stored functor.

Member Functions

Remarks

The template class describes a two-argument functor that stores another two-argument functor. It defines the member operator operator() so that, when the object is called as a function, it returns the logical NOT of the stored functor called with the two arguments.

You can also pass the object as a function argument whose type is delegate_type^ and it will be converted appropriately.

Example

// cliext_binary_negate.cpp 
// compile with: /clr 
#include <cliext/algorithm> 
#include <cliext/functional> 
#include <cliext/vector> 
 
typedef cliext::vector<int> Myvector; 
int main() 
    { 
    Myvector c1; 
    c1.push_back(4); 
    c1.push_back(3); 
    Myvector c2; 
    c2.push_back(4); 
    c2.push_back(4); 
    Myvector c3(2, 0); 
 
// display initial contents " 4 3" and " 4 4" 
    for each (int elem in c1) 
        System::Console::Write(" {0}", elem); 
    System::Console::WriteLine(); 
 
    for each (int elem in c2) 
        System::Console::Write(" {0}", elem); 
    System::Console::WriteLine(); 
 
// transform and display 
    cliext::less<int> less_op; 
 
    cliext::transform(c1.begin(), c1.begin() + 2, 
        c2.begin(), c3.begin(), 
        cliext::binary_negate<cliext::less<int> >(less_op)); 
    for each (int elem in c3) 
        System::Console::Write(" {0}", elem); 
    System::Console::WriteLine(); 
 
// transform and display with function 
    cliext::transform(c1.begin(), c1.begin() + 2, 
        c2.begin(), c3.begin(), cliext::not2(less_op)); 
    for each (int elem in c3) 
        System::Console::Write(" {0}", elem); 
    System::Console::WriteLine(); 
    return (0); 
    } 
 

 4 3
 4 4
 1 0
 1 0

Requirements

Header: <cliext/functional>

Namespace: cliext

See Also

Reference

not2 (STL/CLR)