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Add an explicit hash_delete() function.

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This commit is contained in:
Guus Sliepen 2014-12-07 22:10:16 +01:00
parent 6062df4a0f
commit 9d48d5b7d4
2 changed files with 8 additions and 0 deletions
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7
src/hash.c
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@ -91,6 +91,13 @@ void *hash_search_or_insert(hash_t *hash, const void *key, const void *value) {
return NULL; return NULL;
} }
/* Deleting */
void hash_delete(hash_t *hash, const void *key) {
uint32_t i = modulo(hash_function(key, hash->size), hash->n);
hash->values[i] = NULL;
}
/* Utility functions */ /* Utility functions */
void hash_clear(hash_t *hash) { void hash_clear(hash_t *hash) {

1
src/hash.h
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@ -31,6 +31,7 @@ extern hash_t *hash_alloc(size_t n, size_t size) __attribute__ ((__malloc__));
extern void hash_free(hash_t *); extern void hash_free(hash_t *);
extern void hash_insert(hash_t *, const void *key, const void *value); extern void hash_insert(hash_t *, const void *key, const void *value);
extern void hash_delete(hash_t *, const void *key);
extern void *hash_search(const hash_t *, const void *key); extern void *hash_search(const hash_t *, const void *key);
extern void *hash_search_or_insert(hash_t *, const void *key, const void *value); extern void *hash_search_or_insert(hash_t *, const void *key, const void *value);