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operator==,!=(std::allocator)

(1) 
template< class T1, class T2 >
bool operator==( const allocator<T1>& lhs, const allocator<T2>& rhs ) throw();
 (until C++11) 
template< class T1, class T2 >
bool operator==( const allocator<T1>& lhs, const allocator<T2>& rhs ) noexcept;
 (since C++11)
(until C++20)		 
template< class T1, class T2 >
constexpr bool
    operator==( const allocator<T1>& lhs, const allocator<T2>& rhs ) noexcept;
 (since C++20)
(2) 
template< class T1, class T2 >
bool operator!=( const allocator<T1>& lhs, const allocator<T2>& rhs ) throw();
 (until C++11) 
template< class T1, class T2 >
bool operator!=( const allocator<T1>& lhs, const allocator<T2>& rhs ) noexcept;
 (since C++11)
(until C++20)

Compares two default allocators. Since default allocators are stateless, two default allocators are always equal.

1) Returns true.
2) Returns false.

The != operator is synthesized from operator==.

 (since C++20)

Parameters

lhs, rhs - default allocators to compare

Return value

1) true
2) false

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