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std::make_unique

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< cpp‎ | memory‎ | unique ptr
Revision as of 23:14, 31 May 2013 by P12bot (Talk | contribs)

 
 
 
 
 
Defined in header <memory>
template< class T, class... Args >
unique_ptr<T> make_unique( Args&&... args );
(1) (since C++14)
(only for non-array types)
template< class T>
unique_ptr<T> make_unique( std::size_t size );
(2) (since C++14)
(only for array types with unknown bound)
template< class T, class... Args >
/* unspecified */ make_unique( Args&&... args ) = delete;
(3) (since C++14)
(only for array types with known bound)

Constructs an object of type T and wraps it in a std::unique_ptr.

1) Constructs a non-array type T. The arguments args are passed to the constructor of T. The function does not participate in the overload resolution if T is an array type. The function is equivalent to:
unique_ptr<T>(new T(std::forward<Args>(args)...))
2) Constructs an array of unknown bound T. The arguments args are passed to the constructor of T. The function does not participate in the overload resolution if T is an array type. The function is equivalent to:
unique_ptr<T>(new typename std::remove_extent<T>::type[size]())
3) Construction of arrays of known bound is disallowed.

Contents

Parameters

args - list of arguments with which an instance of T will be constructed.
size - the size of the array to construct

Return value

std::unique_ptr of an instance of type T.

Exceptions

Any exception thrown by the contructor of T. If an exception is thrown, this function has no effect.

See also

constructs a new unique_ptr
(public member function) [edit]