C++ concepts: EmplaceConstructible (since C++11)
From cppreference.com
Specifies that an object of the type can be constructed from a given set of arguments in uninitialized storage by a given allocator.
Requirements
The type T is EmplaceConstructible into the Container X (whose value_type is identical to T) from the arguments args if, given
A
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an allocator type |
m
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an lvalue of type A
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p
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the pointer of type T* prepared by the container
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args
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zero or more arguments |
where X::allocator_type is identical to std::allocator_traits<A>::rebind_alloc<T>,
the following expression is well-formed:
std::allocator_traits<A>::construct(m, p, args);
If X is not allocator-aware, the term is defined as if A were std::allocator<T>, except that no allocator object needs to be created, and user-defined specializations of std::allocator are not instantiated.
See Also
CopyInsertable
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MoveInsertable
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