NAME

     ck_hs_put_unique — unconditionally store unique key into a hash set

LIBRARY

     Concurrency Kit (libck, -lck)

SYNOPSIS

     #include <ck_hs.h>

     bool
     ck_hs_put_unique(ck_hs_t *hs, unsigned long hash, const void *key);

DESCRIPTION

     The ck_hs_put_unique(3) function will store the key specified by the key argument in the
     hash set pointed to by the hs argument. The key specified by key is expected to have the
     hash value specified by the hash argument (which was previously generated using the
     CK_HS_HASH(3) macro).

     If the call to ck_hs_put(3) was successful then the key specified by key was successfully
     stored in the hash set pointed to by hs.  The function will cause undefined behavior if a
     key with an equivalent value is already present in the hash set. For replacement semantics,
     please see the ck_hs_set(3) function.

RETURN VALUES

     Upon successful completion, ck_hs_put_unique(3) returns true and otherwise returns false on
     failure.

ERRORS

     Behavior is undefined if key or hs are uninitialized. The function will also return false if
     the hash set could not be enlarged to accomodate key insertion. The function will result in
     undefined behavior if called for an already inserted key value.

SEE ALSO

     ck_hs_init(3), ck_hs_move(3), ck_hs_destroy(3), CK_HS_HASH(3), ck_hs_iterator_init(3),
     ck_hs_next(3), ck_hs_get(3), ck_hs_put(3), ck_hs_set(3), ck_hs_fas(3), ck_hs_remove(3),
     ck_hs_grow(3), ck_hs_rebuild(3), ck_hs_gc(3), ck_hs_count(3), ck_hs_reset(3),
     ck_hs_reset_size(3), ck_hs_stat(3)

     Additional information available at http://concurrencykit.org/

                                         December 7, 2013