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authornsz <nsz@port70.net>2012-05-13 01:34:20 +0200
committernsz <nsz@port70.net>2012-05-13 01:34:20 +0200
commitd197d6421c317145e2aff89dd41de9d03eeaa00b (patch)
tree7d908d68391a592e9843d49443874f0461bc9f51
parentb47fdcdef8e88452914636ce23ee6792f259b5dc (diff)
downloadmusl-d197d6421c317145e2aff89dd41de9d03eeaa00b.tar.gz
search: add tdestroy (gnu extension)
-rw-r--r--include/search.h2
-rw-r--r--src/search/tdestroy.c21
2 files changed, 23 insertions, 0 deletions
diff --git a/include/search.h b/include/search.h
index 3fa41adc..7c4fc583 100644
--- a/include/search.h
+++ b/include/search.h
@@ -38,6 +38,8 @@ struct qelem {
struct qelem *q_forw, *q_back;
char q_data[1];
};
+
+void tdestroy(void *, void (*)(void *));
#endif
#ifdef __cplusplus
diff --git a/src/search/tdestroy.c b/src/search/tdestroy.c
new file mode 100644
index 00000000..6f430bda
--- /dev/null
+++ b/src/search/tdestroy.c
@@ -0,0 +1,21 @@
+#define _GNU_SOURCE
+#include <stdlib.h>
+#include <search.h>
+
+struct node {
+ void *key;
+ struct node *left;
+ struct node *right;
+};
+
+void tdestroy(void *root, void (*freekey)(void *))
+{
+ struct node *r = root;
+
+ if (r == 0)
+ return;
+ tdestroy(r->left, freekey);
+ tdestroy(r->right, freekey);
+ freekey(r->key);
+ free(r);
+}