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

Since C++20

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

# Declarations

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)

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)