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# PR_CLIST_IS_EMPTY
Checks for an empty circular list.
## Syntax
```{code}
#include <prclist.h>
PRIntn PR_CLIST_IS_EMPTY (PRCList *listp);
```
### Parameter
`listp`
: A pointer to the linked list.
## Description
PR_CLIST_IS_EMPTY returns a non-zero value if the specified list is an
empty list, otherwise returns zero.