Check if link is null

SS_PERS_ISNULL is a macro defined in sspers.h.

Synopsis:

SS_PERS_ISNULL(_pers_)

Description: A null persistent object link is indicated by the link being in the SS_PERS_LINK_NULL state.

Return Value: Returns true if the specified link a null pointer or is in the null state; false otherwise.

Parallel Notes: Independent

See Also:

• Persistent Objects: Introduction for current chapter