Added hashmap
This commit is contained in:
Leonardo committed
1 parent
1830efbc71
commit
eb16205224
5 files changed
+1353
-733
No files matched your search
+529
@@ -0,0 +1,529 @@
|
||||
/**
|
||||
* hashmap.h
|
||||
*
|
||||
* Creation Date: 03/04/2019
|
||||
*
|
||||
* Authors:
|
||||
* Leonardo Vencovsky (https://github.com/LeoVen)
|
||||
*
|
||||
*/
|
||||
|
||||
/*****************************************************************************/
|
||||
/******************************************************************* HASHMAP */
|
||||
/*****************************************************************************/
|
||||
|
||||
#ifndef CMC_HASHMAP_H
|
||||
#define CMC_HASHMAP_H
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <stdbool.h>
|
||||
#include <string.h>
|
||||
|
||||
#ifndef CMC_HASH_TABLE_SETUP
|
||||
#define CMC_HASH_TABLE_SETUP
|
||||
|
||||
typedef enum EntryState_e
|
||||
{
|
||||
ES_DELETED = -1,
|
||||
ES_EMPTY = 0,
|
||||
ES_FILLED = 1
|
||||
} EntryState;
|
||||
|
||||
static const size_t cmc_hashtable_primes[] = {53, 97, 193, 389, 769, 1543, 3079,
|
||||
6151, 12289, 24593, 49157, 98317,
|
||||
196613, 393241, 786433, 1572869,
|
||||
3145739, 6291469, 12582917,
|
||||
25165843, 50331653, 100663319,
|
||||
201326611, 402653189, 805306457,
|
||||
1610612741};
|
||||
|
||||
#endif /* CMC_HASH_TABLE_SETUP */
|
||||
|
||||
#define HASHMAP_GENERATE(PFX, SNAME, FMOD, K, V) \
|
||||
HASHMAP_GENERATE_STRUCT(PFX, SNAME, FMOD, K, V) \
|
||||
HASHMAP_GENERATE_HEADER(PFX, SNAME, FMOD, K, V) \
|
||||
HASHMAP_GENERATE_SOURCE(PFX, SNAME, FMOD, K, V)
|
||||
|
||||
/* PRIVATE *******************************************************************/
|
||||
#define HASHMAP_GENERATE_HEADER_PRIVATE(PFX, SNAME, FMOD, K, V) \
|
||||
HASHMAP_GENERATE_HEADER(PFX, SNAME, FMOD, K, V)
|
||||
#define HASHMAP_GENERATE_SOURCE_PRIVATE(PFX, SNAME, FMOD, K, V) \
|
||||
HASHMAP_GENERATE_STRUCT(PFX, SNAME, FMOD, K, V) \
|
||||
HASHMAP_GENERATE_SOURCE(PFX, SNAME, FMOD, K, V)
|
||||
/* PUBLIC ********************************************************************/
|
||||
#define HASHMAP_GENERATE_HEADER_PUBLIC(PFX, SNAME, FMOD, K, V) \
|
||||
HASHMAP_GENERATE_STRUCT(PFX, SNAME, FMOD, K, V) \
|
||||
HASHMAP_GENERATE_HEADER(PFX, SNAME, FMOD, K, V)
|
||||
#define HASHMAP_GENERATE_SOURCE_PUBLIC(PFX, SNAME, FMOD, K, V) \
|
||||
HASHMAP_GENERATE_SOURCE(PFX, SNAME, FMOD, K, V)
|
||||
/* STRUCT ********************************************************************/
|
||||
#define HASHMAP_GENERATE_STRUCT(PFX, SNAME, FMOD, K, V) \
|
||||
\
|
||||
struct SNAME##_s \
|
||||
{ \
|
||||
struct SNAME##_entry_s *buffer; \
|
||||
size_t capacity; \
|
||||
size_t count; \
|
||||
double load; \
|
||||
int (*cmp)(K, K); \
|
||||
size_t (*hash)(K); \
|
||||
}; \
|
||||
\
|
||||
struct SNAME##_entry_s \
|
||||
{ \
|
||||
K key; \
|
||||
V value; \
|
||||
size_t dist; \
|
||||
enum EntryState_e state; \
|
||||
}; \
|
||||
\
|
||||
struct SNAME##_iter_s \
|
||||
{ \
|
||||
struct SNAME##_s *target; \
|
||||
size_t cursor; \
|
||||
size_t index; \
|
||||
size_t first; \
|
||||
size_t last; \
|
||||
bool start; \
|
||||
bool end; \
|
||||
}; \
|
||||
\
|
||||
/* HEADER ********************************************************************/
|
||||
#define HASHMAP_GENERATE_HEADER(PFX, SNAME, FMOD, K, V) \
|
||||
\
|
||||
typedef struct SNAME##_s SNAME; \
|
||||
typedef struct SNAME##_entry_s SNAME##_entry; \
|
||||
typedef struct SNAME##_iter_s SNAME##_iter; \
|
||||
\
|
||||
FMOD SNAME *PFX##_new(size_t size, double load, int (*compare)(K, K), size_t (*hash)(K)); \
|
||||
FMOD void PFX##_free(SNAME *_map_); \
|
||||
FMOD bool PFX##_insert(SNAME *_map_, K key, V value); \
|
||||
FMOD bool PFX##_remove(SNAME *_map_, K key, V *value); \
|
||||
FMOD bool PFX##_insert_if(SNAME *_map_, K key, V value, bool condition); \
|
||||
FMOD bool PFX##_remove_if(SNAME *_map_, K key, V *value, bool condition); \
|
||||
FMOD bool PFX##_max(SNAME *_map_, K *key, V *value); \
|
||||
FMOD bool PFX##_min(SNAME *_map_, K *key, V *value); \
|
||||
FMOD V PFX##_get(SNAME *_map_, K key); \
|
||||
FMOD bool PFX##_empty(SNAME *_map_); \
|
||||
FMOD size_t PFX##_count(SNAME *_map_); \
|
||||
\
|
||||
FMOD void PFX##_iter_new(SNAME##_iter *iter, SNAME *target); \
|
||||
FMOD bool PFX##_iter_start(SNAME##_iter *iter); \
|
||||
FMOD bool PFX##_iter_end(SNAME##_iter *iter); \
|
||||
FMOD void PFX##_iter_tostart(SNAME##_iter *iter); \
|
||||
FMOD void PFX##_iter_toend(SNAME##_iter *iter); \
|
||||
FMOD bool PFX##_iter_next(SNAME##_iter *iter, K *key, V *value, size_t *index); \
|
||||
FMOD bool PFX##_iter_prev(SNAME##_iter *iter, K *key, V *value, size_t *index); \
|
||||
\
|
||||
/* SOURCE ********************************************************************/
|
||||
#define HASHMAP_GENERATE_SOURCE(PFX, SNAME, FMOD, K, V) \
|
||||
\
|
||||
FMOD bool PFX##_grow(SNAME *_map_); \
|
||||
FMOD SNAME##_entry *PFX##_get_entry(SNAME *_map_, K key); \
|
||||
FMOD size_t PFX##_calculate_size(size_t required); \
|
||||
\
|
||||
FMOD SNAME *PFX##_new(size_t size, double load, int (*compare)(K, K), size_t (*hash)(K)) \
|
||||
{ \
|
||||
if (size == 0 || load <= 0 || load >= 1) \
|
||||
return NULL; \
|
||||
\
|
||||
size_t real_size = PFX##_calculate_size(size); \
|
||||
\
|
||||
SNAME *_map_ = malloc(sizeof(SNAME)); \
|
||||
\
|
||||
if (!_map_) \
|
||||
return NULL; \
|
||||
\
|
||||
_map_->buffer = malloc(sizeof(SNAME##_entry) * real_size); \
|
||||
\
|
||||
if (!_map_->buffer) \
|
||||
{ \
|
||||
free(_map_); \
|
||||
return NULL; \
|
||||
} \
|
||||
\
|
||||
memset(_map_->buffer, 0, sizeof(SNAME##_entry) * real_size); \
|
||||
\
|
||||
_map_->count = 0; \
|
||||
_map_->capacity = real_size; \
|
||||
_map_->load = load; \
|
||||
_map_->cmp = compare; \
|
||||
_map_->hash = hash; \
|
||||
\
|
||||
return _map_; \
|
||||
} \
|
||||
\
|
||||
FMOD void PFX##_free(SNAME *_map_) \
|
||||
{ \
|
||||
free(_map_->buffer); \
|
||||
free(_map_); \
|
||||
} \
|
||||
\
|
||||
FMOD bool PFX##_insert(SNAME *_map_, K key, V value) \
|
||||
{ \
|
||||
if ((double)_map_->capacity * _map_->load <= (double)_map_->count) \
|
||||
{ \
|
||||
if (!PFX##_grow(_map_)) \
|
||||
return false; \
|
||||
} \
|
||||
\
|
||||
size_t hash = _map_->hash(key); \
|
||||
size_t original_pos = hash % _map_->capacity; \
|
||||
size_t pos = original_pos; \
|
||||
\
|
||||
SNAME##_entry *target = &(_map_->buffer[pos]); \
|
||||
\
|
||||
if (PFX##_get_entry(_map_, key) != NULL) \
|
||||
return false; \
|
||||
\
|
||||
if (target->state == ES_EMPTY || target->state == ES_DELETED) \
|
||||
{ \
|
||||
target->key = key; \
|
||||
target->value = value; \
|
||||
target->dist = original_pos - pos; \
|
||||
target->state = ES_FILLED; \
|
||||
} \
|
||||
else \
|
||||
{ \
|
||||
while (true) \
|
||||
{ \
|
||||
pos++; \
|
||||
target = &(_map_->buffer[pos % _map_->capacity]); \
|
||||
\
|
||||
if (target->state == ES_EMPTY || target->state == ES_DELETED) \
|
||||
{ \
|
||||
target->key = key; \
|
||||
target->value = value; \
|
||||
target->dist = pos - original_pos; \
|
||||
target->state = ES_FILLED; \
|
||||
break; \
|
||||
} \
|
||||
else if (target->dist < original_pos - pos) \
|
||||
{ \
|
||||
K tmp_k = target->key; \
|
||||
V tmp_v = target->value; \
|
||||
size_t tmp_dist = target->dist; \
|
||||
\
|
||||
target->key = key; \
|
||||
target->value = value; \
|
||||
target->dist = pos - original_pos; \
|
||||
\
|
||||
key = tmp_k; \
|
||||
value = tmp_v; \
|
||||
original_pos = pos - tmp_dist; \
|
||||
} \
|
||||
} \
|
||||
} \
|
||||
\
|
||||
_map_->count++; \
|
||||
\
|
||||
return true; \
|
||||
} \
|
||||
\
|
||||
FMOD bool PFX##_remove(SNAME *_map_, K key, V *value) \
|
||||
{ \
|
||||
SNAME##_entry *result = PFX##_get_entry(_map_, key); \
|
||||
\
|
||||
if (result == NULL) \
|
||||
return false; \
|
||||
\
|
||||
*value = result->value; \
|
||||
\
|
||||
result->value = 0; \
|
||||
result->dist = 0; \
|
||||
result->state = ES_DELETED; \
|
||||
\
|
||||
_map_->count--; \
|
||||
\
|
||||
return true; \
|
||||
} \
|
||||
\
|
||||
FMOD bool PFX##_insert_if(SNAME *_map_, K key, V value, bool condition) \
|
||||
{ \
|
||||
if (condition) \
|
||||
return PFX##_insert(_map_, key, value); \
|
||||
\
|
||||
return false; \
|
||||
} \
|
||||
\
|
||||
FMOD bool PFX##_remove_if(SNAME *_map_, K key, V *value, bool condition) \
|
||||
{ \
|
||||
if (condition) \
|
||||
return PFX##_remove(_map_, key, value); \
|
||||
\
|
||||
return false; \
|
||||
} \
|
||||
\
|
||||
FMOD bool PFX##_max(SNAME *_map_, K *key, V *value) \
|
||||
{ \
|
||||
if (PFX##_empty(_map_)) \
|
||||
return false; \
|
||||
\
|
||||
SNAME##_iter iter; \
|
||||
K result_key, max_key; \
|
||||
V result_value; \
|
||||
size_t index; \
|
||||
\
|
||||
for (PFX##_iter_new(&iter, _map_); !PFX##_iter_end(&iter);) \
|
||||
{ \
|
||||
PFX##_iter_next(&iter, &result_key, &result_value, &index); \
|
||||
\
|
||||
if (index == 0) \
|
||||
{ \
|
||||
max_key = result_key; \
|
||||
*key = result_key; \
|
||||
*value = result_value; \
|
||||
} \
|
||||
else if (_map_->cmp(result_key, max_key) > 0) \
|
||||
{ \
|
||||
max_key = result_key; \
|
||||
*key = result_key; \
|
||||
*value = result_value; \
|
||||
} \
|
||||
} \
|
||||
\
|
||||
return true; \
|
||||
} \
|
||||
\
|
||||
FMOD bool PFX##_min(SNAME *_map_, K *key, V *value) \
|
||||
{ \
|
||||
if (PFX##_empty(_map_)) \
|
||||
return false; \
|
||||
\
|
||||
SNAME##_iter iter; \
|
||||
K result_key, min_key; \
|
||||
V result_value; \
|
||||
size_t index; \
|
||||
\
|
||||
for (PFX##_iter_new(&iter, _map_); !PFX##_iter_end(&iter);) \
|
||||
{ \
|
||||
PFX##_iter_next(&iter, &result_key, &result_value, &index); \
|
||||
\
|
||||
if (index == 0) \
|
||||
{ \
|
||||
min_key = result_key; \
|
||||
*key = result_key; \
|
||||
*value = result_value; \
|
||||
} \
|
||||
else if (_map_->cmp(result_key, min_key) < 0) \
|
||||
{ \
|
||||
min_key = result_key; \
|
||||
*key = min_key; \
|
||||
*value = result_value; \
|
||||
} \
|
||||
} \
|
||||
\
|
||||
return true; \
|
||||
} \
|
||||
\
|
||||
FMOD V PFX##_get(SNAME *_map_, K key) \
|
||||
{ \
|
||||
SNAME##_entry *entry = PFX##_get_entry(_map_, key); \
|
||||
\
|
||||
if (!entry) \
|
||||
return 0; \
|
||||
\
|
||||
return entry->value; \
|
||||
} \
|
||||
\
|
||||
FMOD bool PFX##_empty(SNAME *_map_) \
|
||||
{ \
|
||||
return _map_->count == 0; \
|
||||
} \
|
||||
\
|
||||
FMOD size_t PFX##_count(SNAME *_map_) \
|
||||
{ \
|
||||
return _map_->count; \
|
||||
} \
|
||||
\
|
||||
FMOD bool PFX##_grow(SNAME *_map_) \
|
||||
{ \
|
||||
size_t new_size = PFX##_calculate_size((size_t)((double)_map_->capacity * 1.5)); \
|
||||
\
|
||||
SNAME *_new_map_ = PFX##_new(new_size, _map_->load, _map_->cmp, _map_->hash); \
|
||||
\
|
||||
if (!_new_map_) \
|
||||
return false; \
|
||||
\
|
||||
SNAME##_iter iter; \
|
||||
K key; \
|
||||
V value; \
|
||||
size_t index; \
|
||||
\
|
||||
for (PFX##_iter_new(&iter, _map_); !PFX##_iter_end(&iter);) \
|
||||
{ \
|
||||
PFX##_iter_next(&iter, &key, &value, &index); \
|
||||
PFX##_insert(_new_map_, key, value); \
|
||||
} \
|
||||
\
|
||||
if (_map_->count != _new_map_->count) \
|
||||
{ \
|
||||
PFX##_free(_new_map_); \
|
||||
return false; \
|
||||
} \
|
||||
\
|
||||
SNAME##_entry *tmp = _map_->buffer; \
|
||||
_map_->buffer = _new_map_->buffer; \
|
||||
_new_map_->buffer = tmp; \
|
||||
\
|
||||
_map_->capacity = _new_map_->capacity; \
|
||||
\
|
||||
PFX##_free(_new_map_); \
|
||||
\
|
||||
return true; \
|
||||
} \
|
||||
\
|
||||
FMOD SNAME##_entry *PFX##_get_entry(SNAME *_map_, K key) \
|
||||
{ \
|
||||
size_t hash = _map_->hash(key); \
|
||||
size_t pos = hash % _map_->capacity; \
|
||||
\
|
||||
SNAME##_entry *target = &(_map_->buffer[pos % _map_->capacity]); \
|
||||
\
|
||||
while (target->state == ES_FILLED || target->state == ES_DELETED) \
|
||||
{ \
|
||||
if (_map_->cmp(target->key, key) == 0) \
|
||||
return target; \
|
||||
\
|
||||
pos++; \
|
||||
target = &(_map_->buffer[pos % _map_->capacity]); \
|
||||
} \
|
||||
\
|
||||
return NULL; \
|
||||
} \
|
||||
\
|
||||
FMOD size_t PFX##_calculate_size(size_t required) \
|
||||
{ \
|
||||
const size_t count = sizeof(cmc_hashtable_primes) / sizeof(cmc_hashtable_primes[0]); \
|
||||
\
|
||||
if (cmc_hashtable_primes[count - 1] < required) \
|
||||
return required; \
|
||||
\
|
||||
size_t i = 0; \
|
||||
while (cmc_hashtable_primes[i] < required) \
|
||||
i++; \
|
||||
\
|
||||
return cmc_hashtable_primes[i]; \
|
||||
} \
|
||||
\
|
||||
FMOD void PFX##_iter_new(SNAME##_iter *iter, SNAME *target) \
|
||||
{ \
|
||||
iter->target = target; \
|
||||
iter->cursor = 0; \
|
||||
iter->index = 0; \
|
||||
iter->start = true; \
|
||||
iter->end = PFX##_empty(target); \
|
||||
\
|
||||
if (!PFX##_empty(target)) \
|
||||
{ \
|
||||
for (size_t i = 0; i < target->capacity; i++) \
|
||||
{ \
|
||||
if (target->buffer[i].state == ES_FILLED) \
|
||||
{ \
|
||||
iter->first = i; \
|
||||
break; \
|
||||
} \
|
||||
} \
|
||||
\
|
||||
iter->cursor = iter->first; \
|
||||
\
|
||||
for (size_t i = target->capacity; i > 0; i--) \
|
||||
{ \
|
||||
if (target->buffer[i - 1].state == ES_FILLED) \
|
||||
{ \
|
||||
iter->last = i - 1; \
|
||||
break; \
|
||||
} \
|
||||
} \
|
||||
} \
|
||||
} \
|
||||
\
|
||||
FMOD bool PFX##_iter_start(SNAME##_iter *iter) \
|
||||
{ \
|
||||
return iter->start && iter->cursor == iter->first; \
|
||||
} \
|
||||
\
|
||||
FMOD bool PFX##_iter_end(SNAME##_iter *iter) \
|
||||
{ \
|
||||
return iter->end && iter->cursor == iter->last; \
|
||||
} \
|
||||
\
|
||||
FMOD void PFX##_iter_tostart(SNAME##_iter *iter) \
|
||||
{ \
|
||||
iter->cursor = iter->first; \
|
||||
iter->index = 0; \
|
||||
iter->start = true; \
|
||||
iter->end = PFX##_empty(iter->target); \
|
||||
} \
|
||||
\
|
||||
FMOD void PFX##_iter_toend(SNAME##_iter *iter) \
|
||||
{ \
|
||||
iter->cursor = iter->last; \
|
||||
iter->index = iter->target->count - 1; \
|
||||
iter->start = PFX##_empty(iter->target); \
|
||||
iter->end = true; \
|
||||
} \
|
||||
\
|
||||
FMOD bool PFX##_iter_next(SNAME##_iter *iter, K *key, V *value, size_t *index) \
|
||||
{ \
|
||||
if (iter->end) \
|
||||
return false; \
|
||||
\
|
||||
SNAME##_entry *scan = &(iter->target->buffer[iter->cursor]); \
|
||||
\
|
||||
*key = scan->key; \
|
||||
*value = scan->value; \
|
||||
*index = iter->index; \
|
||||
\
|
||||
if (iter->cursor == iter->last) \
|
||||
iter->end = true; \
|
||||
else \
|
||||
{ \
|
||||
iter->index++; \
|
||||
while (1) \
|
||||
{ \
|
||||
iter->cursor++; \
|
||||
scan = &(iter->target->buffer[iter->cursor]); \
|
||||
\
|
||||
if (scan->state == ES_FILLED) \
|
||||
break; \
|
||||
} \
|
||||
} \
|
||||
\
|
||||
iter->start = PFX##_empty(iter->target); \
|
||||
\
|
||||
return true; \
|
||||
} \
|
||||
\
|
||||
FMOD bool PFX##_iter_prev(SNAME##_iter *iter, K *key, V *value, size_t *index) \
|
||||
{ \
|
||||
if (iter->start) \
|
||||
return false; \
|
||||
\
|
||||
SNAME##_entry *scan = &(iter->target->buffer[iter->cursor]); \
|
||||
\
|
||||
*key = scan->key; \
|
||||
*value = scan->value; \
|
||||
*index = iter->index; \
|
||||
\
|
||||
if (iter->cursor == iter->first) \
|
||||
iter->start = true; \
|
||||
else \
|
||||
{ \
|
||||
iter->index--; \
|
||||
while (1) \
|
||||
{ \
|
||||
iter->cursor--; \
|
||||
scan = &(iter->target->buffer[iter->cursor]); \
|
||||
\
|
||||
if (scan->state == ES_FILLED) \
|
||||
break; \
|
||||
} \
|
||||
} \
|
||||
\
|
||||
iter->end = PFX##_empty(iter->target); \
|
||||
\
|
||||
return true; \
|
||||
}
|
||||
|
||||
#endif /* CMC_HASHMAP_H */
|
||||
@@ -41,6 +41,7 @@
|
||||
#include "treeset.h"
|
||||
#include "treemap.h"
|
||||
#include "hashset.h"
|
||||
#include "hashmap.h"
|
||||
|
||||
#include "foreach.h"
|
||||
|
||||
|
||||
+726
-726
File diff suppressed because it is too large.
Load diff
Reference in new issue
Block a user