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hfind_ptr

Category: hash
GitHub: cute_hashtable.h

Fetches a pointer to the item that k maps to.

#define hfind_ptr(h, k) cf_hashtable_find_ptr(h, k)
Parameters Description
h The hashtable. Can be NULL. Needs to be a pointer to the type of items in the table.
k The key for lookups. Each {key, item} pair must be unique. Keys are always typecasted to uint64_t e.g. you can use pointers as keys.

Return Value

Returns a pointer to an item. Returns NULL if not found.

Code Example

Set and get a few elements from a hashtable.

htbl CF_V2 table = NULL;
hadd(table, 10, cf_v2(-1, 1));
CF_V2 v = hfind_ptr(table, 10);
CF_ASSERT(v);
CF_ASSERT(v->x == -1);
CF_ASSERT(v->y == 1);
hfree(table);

Remarks

If you want to fetch an item by value, you can use hget or hfind. Does the same thing as hget_ptr.

htbl
hset
hadd
hget
hfind
hget_ptr
hfree
hhas
hdel
hclear
hkeys
hitems
hswap
hsize
hcount