Tests for inequality between allocator objects of a specified class.
template <class Type, class Sync>
    bool operator!=(
        const allocator_base<Type, Sync>& _Left,
        const allocator_base<Type, Sync>& _Right
    );
Parameters
| Parameter | Description | 
|---|---|
| _Left | One of the allocator objects to be tested for inequality. | 
| _Right | One of the allocator objects to be tested for inequality. | 
Return Value
true if the allocator objects are not equal; false if allocator objects are equal.
Remarks
The template operator returns !(_Left == _Right).
Requirements
Header: <allocators>
Namespace: stdext