Modern SharedPtr IsNull

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IsNull

Returns true if the handle owns no object.

Syntax

IsNull( ) as boolean

Examples

#import "std/memory"
using memory

type Node
    as int32 id
end type

dim p as SharedPtr( of Node )
print p.IsNull( )            '' true -- a default-constructed handle owns nothing

p = MakeShared( of Node )( )
print p.IsNull( )            '' false

p.Reset( )
print p.IsNull( )            '' true -- back to owning nothing

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Library: SharedPtr and WeakPtr
Category: Smart Pointers
Documented under: Members