1 ===========================
2 Determine if a keys exists.
3 ===========================
5 .. index:: object: memcached_st
10 #include <libmemcached/memcached.h>
12 .. function:: memcached_return_t memcached_exist(memcached_st *ptr, char *key, size_t *key_length)
14 .. function:: memcached_return_t memcached_exist_by_key(memcached_st *ptr, char *group_key, size_t *group_key_length, char *key, size_t *key_length)
16 Compile and link with -lmemcached
18 .. versionadded:: 0.53
23 :func:`memcached_exist()` can be used to check if a key exists.
32 The key was not found.
39 :manpage:`memcached(1)` :manpage:`libmemcached(3)` :manpage:`memcached_strerror(3)`