Short Bridesmaid Dresses | Rocking Moses Basket Stands
Svenska städer
Default Constructible
 |
 |
| Category: utilities |
Component type: concept |
Description
A type is DefaultConstructible if it has a default constructor,
that is, if it is possible to construct an object of that type
without initializing the object to any particular value.
Refinement of
Associated types
Notation
|
X
|
A type that is a model of DefaultConstructible
|
|
x
|
An object of type X
|
Definitions
Valid expressions
|
Name
|
Expression
|
Type requirements
|
Return type
|
|
Default constructor
|
X()
|
|
X
|
|
Default constructor
|
X x; [1]
|
|
|
Expression semantics
|
Name
|
Expression
|
Precondition
|
Semantics
|
Postcondition
|
|
Default constructor
|
X()
|
|
|
|
|
Default constructor
|
X x;
|
|
|
|
Complexity guarantees
Models
Notes
[1]
The form X x = X() is not guaranteed to be a valid expression,
because it uses a copy constructor. A type that is
DefaultConstructible is not necessarily Assignable
See also
Assignable
![[Silicon Surf]](surf.gif)
![[STL Home]](stl_home.gif)
Copyright ©
1999 Silicon Graphics, Inc. All Rights Reserved.
TrademarkInformation