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[phrases] constant for NULL prefix results

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This commit is contained in:
Al
2015-05-22 09:08:07 -04:00
parent cb14e5eef1
commit 27171e068d
2 changed files with 8 additions and 6 deletions
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10
src/trie.c
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@@ -697,7 +697,7 @@ inline trie_data_node_t trie_get_data_node(trie_t *self, trie_node_t node) {
trie_prefix_result_t trie_get_prefix_from_index(trie_t *self, char *key, size_t len, uint32_t i, size_t tail_pos) {
if (key == NULL) {
return (trie_prefix_result_t){NULL_NODE_ID, 0};
return NULL_PREFIX_RESULT;
}
unsigned char *ptr = (unsigned char *)key;
@@ -705,7 +705,7 @@ trie_prefix_result_t trie_get_prefix_from_index(trie_t *self, char *key, size_t
uint32_t node_id = i;
trie_node_t node = trie_get_node(self, i);
if (node.base == NULL_NODE_ID) {
return (trie_prefix_result_t){NULL_NODE_ID, 0};
return NULL_PREFIX_RESULT;
}
uint32_t next_id = NULL_NODE_ID;
@@ -719,7 +719,7 @@ trie_prefix_result_t trie_get_prefix_from_index(trie_t *self, char *key, size_t
node = trie_get_node(self, next_id);
if (node.check != node_id) {
return (trie_prefix_result_t){NULL_NODE_ID, 0};
return NULL_PREFIX_RESULT;
}
if (node.base < 0) break;
@@ -737,13 +737,13 @@ trie_prefix_result_t trie_get_prefix_from_index(trie_t *self, char *key, size_t
if (data_node.tail != 0 && trie_compare_tail(self, query_tail, query_len, data_node.tail + tail_pos)) {
return (trie_prefix_result_t){next_id, query_len};
} else {
return (trie_prefix_result_t){NULL_NODE_ID, 0};
return NULL_PREFIX_RESULT;
}
}
return (trie_prefix_result_t){next_id, 0};
return NULL_PREFIX_RESULT;
}

4
src/trie.h
View File

@@ -110,9 +110,11 @@ typedef struct trie_prefix_result {
size_t tail_pos;
} trie_prefix_result_t;
const trie_prefix_result_t NULL_PREFIX_RESULT = {NULL_NODE_ID, 0};
trie_prefix_result_t trie_get_prefix(trie_t *self, char *key);
trie_prefix_result_t trie_get_prefix_len(trie_t *self, char *key, size_t len);
trie_prefix_result_t trie_get_prefix_from_index(trie_t *self, char *key, size_t len, uint32_t i);
trie_prefix_result_t trie_get_prefix_from_index(trie_t *self, char *key, size_t len, uint32_t i, size_t tail_pos);
void trie_print(trie_t *self);