operator!= (<memory>)
Tests for inequality between objects.
template<class Type, class Other>
bool operator!=(
const allocator<Type>& _Left,
const allocator<Other>& _Right
) throw();
template<class Type1, class Del1, class Type2, class Del2>
bool operator!=(
const unique_ptr<Type1, Del1>& _Left,
const unique_ptr<Type2&, Del2>& _Right
);
template<class Ty1, class Ty2>
bool operator!=(
const shared_ptr<Ty1>& _Left,
const shared_ptr<Ty2>& _Right
);
Parameters
_Left
One of the objects to be tested for inequality._Right
One of the objects to be tested for inequality.Ty1
The type controlled by the left shared pointer.Ty2
The type controlled by the right shared pointer.
Return Value
true if the objects are not equal; false if objects are equal.
Remarks
The first template operator returns false. (All default allocators are equal.)
The second and third template operators return !(_Left == _Right).
Example
// memory_op_me.cpp
// compile with: /EHsc
#include <memory>
#include <iostream>
#include <vector>
using namespace std;
int main( )
{
allocator<double> Alloc;
vector <char>:: allocator_type v1Alloc;
if ( Alloc != v1Alloc )
cout << "The allocator objects Alloc & v1Alloc not are equal."
<< endl;
else
cout << "The allocator objects Alloc & v1Alloc are equal."
<< endl;
}
The allocator objects Alloc & v1Alloc are equal.
// std_tr1__memory__operator_ne.cpp
// compile with: /EHsc
#include <memory>
#include <iostream>
int main()
{
std::shared_ptr<int> sp0(new int(0));
std::shared_ptr<int> sp1(new int(0));
std::cout << "sp0 != sp0 == " << std::boolalpha
<< (sp0 != sp0) << std::endl;
std::cout << "sp0 != sp1 == " << std::boolalpha
<< (sp0 != sp1) << std::endl;
return (0);
}
sp0 != sp0 == false sp0 != sp1 == true
Requirements
Header: <memory>
Namespace: std