aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--src/tree.c24
-rw-r--r--src/tree.h10
2 files changed, 30 insertions, 4 deletions
diff --git a/src/tree.c b/src/tree.c
index c6fc33b..899514e 100644
--- a/src/tree.c
+++ b/src/tree.c
@@ -37,9 +37,27 @@ int tree_balance ( struct tree_node** _root )
return 1;
}
-int tree_destroy ( struct tree_node** _root )
+int tree_destroy ( struct tree_node** _root, uint8_t _options )
{
- return 1;
+ while(*_root)
+ {
+ struct tree_node** node = _root;
+
+ while( (*node)->above || (*node)->below )
+ node= (*node)->above ? & (*node)->above : & (*node)->below ;
+
+ printf( "%s\n", (*node)->data );
+
+ if (_options & _TREE_FREE_KEY)
+ free( (*node)->data );
+ if (_options & _TREE_FREE_KEY)
+ free( (*node)->key );
+
+ free ( *node );
+ *node = NULL;
+ }
+
+ return 0;
}
int string_compare ( char* _1, char* _2 )
@@ -88,7 +106,7 @@ void* tree_get ( struct tree_node** _root, char* _query )
}
}
- return *node ? (*node)->key : NULL;
+ return *node ? (*node)->data : NULL;
return 0;
}
diff --git a/src/tree.h b/src/tree.h
index 958b5ed..38b4b38 100644
--- a/src/tree.h
+++ b/src/tree.h
@@ -9,6 +9,11 @@
#include <stdlib.h>
#include <stdint.h>
+#include <stdio.h>
+
+#define _TREE_FREE_DATA 0x01
+#define _TREE_FREE_KEY 0x02
+
struct tree_node {
char* key;
void* data;
@@ -20,9 +25,12 @@ int tree_insert ( struct tree_node** _root, char* _key, void* _data );
int tree_balance( struct tree_node** _root );
+/**
+ * Returns (void*)node->data on success, NULL on failure
+ * */
void* tree_get ( struct tree_node** _root, char* _query );
-int tree_destroy( struct tree_node** _root );
+int tree_destroy( struct tree_node** _root, uint8_t _options );
/**
* ignore-case alphabetical string compare