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定义于头文件 <scoped_allocator>
template< class OuterAlloc1, class OuterAlloc2, class... InnerAllocs >

bool operator==( const scoped_allocator_adaptor<OuterAlloc1, InnerAllocs...>& lhs,

                 const scoped_allocator_adaptor<OuterAlloc2, InnerAllocs...>& rhs ) noexcept;
(C++11 起)
template< class OuterAlloc1, class OuterAlloc2, class... InnerAllocs >

bool operator!=( const scoped_allocator_adaptor<OuterAlloc1, InnerAllocs...>& lhs,

                 const scoped_allocator_adaptor<OuterAlloc2, InnerAllocs...>& rhs ) noexcept;
(C++11 起)
(C++20 前)

比较二个 scoped_allocator_adaptors 。若满足下列条件则二个这种分配器相等:

  • lhs.outer_allocator() == rhs.outer_allocator() ,且
  • sizeof...(InnerAllocs) > 0 ,则 lhs.inner_allocator() == rhs.inner_allocator()

参数

lhs, rhs - 要比较的 scoped_allocator_adaptors

返回值

1)lhsrhs 相等,则返回 true ,否则返回 false
2)lhsrhs 不相等,则返回 true ,否则返回 false