operator==,!=(std::allocator) - cppreference.com (original) (raw)

| (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)

[edit] Parameters

lhs, rhs - default allocators to compare

[edit] Return value

  1. true

  2. false