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tweak: formatting of hash map

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Sara 2024-09-25 17:33:08 +02:00
parent e99e391ffa
commit faf0463e37
1 changed files with 8 additions and 6 deletions
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14
hash_map.c
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@ -1,5 +1,6 @@
#include "hash_map.h"
#include "string.h"
#include "debug.h"
HashMap hash_map_from_sizes(size_t key, size_t value, HashFunc hasher) {
HashMap self = {
@ -23,9 +24,10 @@ void *hash_map_get_raw(HashMap *self, void *key) {
List bucket = self->buckets[hash % CUTES_HASH_MAP_BUCKETS]; // get the bucket to search
// linear search through the bucket to find the element
for(size_t i = 0; i < bucket.len; ++i) {
uintptr_t *key_at = list_at(&bucket, i);
if(hash == *key_at)
return ((char*)key_at) + sizeof(uintptr_t) + self->key_size;
char *key_at = ((char*)bucket.data) + (bucket.element_size * i);
if(memcmp(&hash, key_at, sizeof(uintptr_t)) == 0) {
return key_at + sizeof(uintptr_t) + self->key_size;
}
}
return NULL;
}
@ -34,11 +36,11 @@ void hash_map_insert(HashMap *self, void *key, void *value) {
uintptr_t hash = self->hasher(key);
// stage key-value-pair data
char data[self->buckets[0].element_size];
memcpy(data, &hash, sizeof(uintptr_t)); // copy key hash into start of data
memcpy(data + sizeof(uintptr_t), key, self->key_size); // copy key after hash
memcpy(data, &hash, sizeof(uintptr_t)); // copy key hash into start of data
memcpy(data + sizeof(uintptr_t), key, self->key_size); // copy key after hash
memcpy(data + sizeof(uintptr_t) + self->key_size, value, self->value_size); // copy value into end of data
// insert staged data into list
list_add(self->buckets + (hash % CUTES_HASH_MAP_BUCKETS), data);
list_add(&self->buckets[hash % CUTES_HASH_MAP_BUCKETS], data);
}
List hash_map_keys(HashMap *self) {