Type (Alias)
Declares an alternative name for a type
typename
symbol may refer to any declared data type including a built-in data type, Sub or Function pointer, Type declaration, Union declaration, or Enum declaration.
A type alias can be used to allow forward declarations of User Defined Types.
Syntax
Parameters
typename
new alternative name.
symbol symbol or data type declaration to associate with typename.
Description
symbol may refer to any declared data type including a built-in data type, Sub or Function pointer, Type declaration, Union declaration, or Enum declaration.
A type alias can be used to allow forward declarations of User Defined Types.
Example
Type ParentFwd As Parent
Type Child
Name As ZString * 32
ParentRef As ParentFwd Ptr
''...
End Type
Type Parent
Name As ZString * 32
ChildList(0 To 9) As Child
''...
End Type
Dim p As Parent
p.Name = "Foo"
With p.ChildList(0)
.Name = "Jr."
.ParentRef = @p
'' ...
End With
With p.ChildList(0)
Print .Name; " is child of "; .parentRef->Name
End With
Type Child
Name As ZString * 32
ParentRef As ParentFwd Ptr
''...
End Type
Type Parent
Name As ZString * 32
ChildList(0 To 9) As Child
''...
End Type
Dim p As Parent
p.Name = "Foo"
With p.ChildList(0)
.Name = "Jr."
.ParentRef = @p
'' ...
End With
With p.ChildList(0)
Print .Name; " is child of "; .parentRef->Name
End With
Differences from QB
- New to FreeBASIC
See also
