Defined in header <memory> | ||
---|---|---|
void declare_reachable( void* p ); | (since C++11) |
Declares the object referenced by the pointer p
reachable. Reachable objects will not be deleted by the garbage collector or considered to be a leak by a leak detector even if all pointers to it are destroyed. An object may be declared reachable multiple times, in which case multiple calls to std::undeclare_reachable
would be needed to remove this property. For example, a XOR linked list needs to declare its nodes reachable if the implementation has garbage collection enabled.
Parameters
p | - | a safely-derived pointer or a null pointer |
Return value
(none).
Exceptions
May throw std::bad_alloc
if the system cannot allocate memory required to track reachable objects.
Example
See also
(C++11) | declares that an object can be recycled (function template) |
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