##### cppreference.com

##### Search

Create account

##### Namespaces

- Page
- Discussion

##### Variants

##### Views

- View
- Edit
- History

##### Actions

# std::allocator::construct

From cppreference.com
< cpp‎ | memory‎ | allocator

Defined in header `<memory>` |  |
void construct( pointer p, const_reference val ); | (1) | (until C++11)
template< class U, class... Args > void construct( U* p, Args&&... args ); | (2) | (since C++11) (deprecated since C++17)

Constructs an object of type `T` in allocated uninitialized storage pointed to by `p`, using placement-new

1) Calls new((void *)p) T(val)
2) Calls ::new((void *)p) U(std::forward<Args>(args)...)

### [edit] Parameters

p | - | pointer to allocated uninitialized storage
val | - | the value to use as the copy constructor argument
args... | - | the constructor arguments to use

### [edit] Return value

(none)

### [edit] See also

construct [static] | constructs an object in the allocated storage (function template) [edit]
operator new operator new[] | allocation functions (function) [edit]

Retrieved from "http://en.cppreference.com/mwiki/index.php?title=cpp/memory/allocator/construct&oldid=86270"