20 General utilities library [utilities]

20.13 Class template scoped_­allocator_­adaptor [allocator.adaptor]

20.13.5 Operators [scoped.adaptor.operators]

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template<class OuterA1, class OuterA2, class... InnerAllocs> bool operator==(const scoped_allocator_adaptor<OuterA1, InnerAllocs...>& a, const scoped_allocator_adaptor<OuterA2, InnerAllocs...>& b) noexcept;
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Returns: If sizeof...(InnerAllocs) is zero, a.outer_allocator() == b.outer_allocator() otherwise a.outer_allocator() == b.outer_allocator() && a.inner_allocator() == b.inner_allocator()