std::allocator::construct

 

C++

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Dynamic memory management

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Allocators
allocator
allocator_traits (C++11)
allocator_arg_t (C++11)
allocator_arg (C++11)
uses_allocator (C++11)
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pointer_traits (C++11)
addressof (C++11)
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C Library
malloc calloc	realloc free

 

std::allocator

Member functions

allocator::allocator

allocator::~allocator

allocator::address

allocator::allocate

allocator::deallocate

allocator::max_size

allocator::construct

allocator::destroy

Non-member functions

operator== operator!=

 

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

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)...)

Parameters

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

Return value

(none)

See also

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