deduction guides for std::scoped_allocator_adaptor


在标头 <scoped_allocator> 定义
template< class OuterAlloc, class... InnerAllocs >

scoped_allocator_adaptor( OuterAlloc, InnerAllocs... )

    -> scoped_allocator_adaptor<OuterAlloc, InnerAllocs...>;
(C++17 起)

std::scoped_allocator_adaptor 提供推导指引,使之能推导其外层分配器。

示例