23 General utilities library [utilities]

23.12 Memory resources [mem.res]

23.12.3 Class template polymorphic_­allocator [mem.poly.allocator.class]

23.12.3.1 polymorphic_­allocator constructors [mem.poly.allocator.ctor]

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polymorphic_allocator() noexcept;
1
#
Effects: Sets memory_­rsrc to get_­default_­resource().
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polymorphic_allocator(memory_resource* r);
2
#
Requires: r is non-null.
3
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Effects: Sets memory_­rsrc to r.
4
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Throws: Nothing.
5
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[ Note
:
This constructor provides an implicit conversion from memory_­resource*.
— end note
 ]
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template <class U> polymorphic_allocator(const polymorphic_allocator<U>& other) noexcept;
6
#
Effects: Sets memory_­rsrc to other.resource().