std:: uninitialized_construct_using_allocator
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Defined in header
<memory>
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template
<
class
T,
class
Alloc,
class
...
Args
>
constexpr
T
*
uninitialized_construct_using_allocator
(
T
*
p,
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(since C++20) | |
Creates an object of the given type
T
by means of
uses-allocator construction
at the uninitialized memory location indicated by
p
.
Equivalent to
return std::apply( [&]<class... Xs>(Xs&&...xs) { return std::construct_at(p, std::forward<Xs>(xs)...); }, std::uses_allocator_construction_args<T>(alloc, std::forward<Args>(args)...));
Parameters
p | - | the memory location where the object will be placed |
alloc | - | the allocator to use |
args | - | the arguments to pass to T's constructor |
Return value
Pointer to the newly-created object of type
T
.
Exceptions
May throw any exception thrown by the constructor of
T
, typically including
std::bad_alloc
.
Example
This section is incomplete
Reason: no example |
See also
(C++11)
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checks if the specified type supports uses-allocator construction
(class template) |
(C++20)
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creates an object of the given type by means of uses-allocator construction
(function template) |