aboutsummaryrefslogtreecommitdiff
path: root/misc/search.h
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>1997-05-30 01:37:13 +0000
committerUlrich Drepper <drepper@redhat.com>1997-05-30 01:37:13 +0000
commitd951286f645cc1d6f719c0c715620fc395c049d4 (patch)
treeff756b3d8cb561d733337cf27bca2e26358852ba /misc/search.h
parent76b87c039ba8d20add4f52ba43f3471fd92e210b (diff)
downloadglibc-d951286f645cc1d6f719c0c715620fc395c049d4.zip
glibc-d951286f645cc1d6f719c0c715620fc395c049d4.tar.gz
glibc-d951286f645cc1d6f719c0c715620fc395c049d4.tar.bz2
* io/Makefile (test-srcs): Add ftwtest. (distribute): Add ftwtest-sh. (tests): Call ftwtest-sh for this goal. * io/ftwtest-sh: New file. Sets up test environment, calls test program and compares the result. * io/ftwtest.c: Test program for ftw. * misc/search.h: Add comments. Declare tdestroy. * misc/tsearch.c (tdestroy): New function.
Diffstat (limited to 'misc/search.h')
-rw-r--r--misc/search.h21
1 files changed, 19 insertions, 2 deletions
diff --git a/misc/search.h b/misc/search.h
index 8ce3351..ff0672d 100644
--- a/misc/search.h
+++ b/misc/search.h
@@ -106,16 +106,21 @@ typedef enum
}
VISIT;
+/* Search for an entry matching the given KEY in the tree pointed to
+ by *ROOTP and insert a new element if not found. */
extern void *tsearch __P ((__const void * __key, void **__rootp,
__compar_fn_t compar));
extern void *__tsearch __P ((__const void * __key, void **__rootp,
__compar_fn_t compar));
-extern void *tfind __P ((__const void * __key, __const void ** __rootp,
+/* Search for an entry matching the given KEY in the tree pointed to
+ by *ROOTP. If no matching entry is available return NULL. */
+extern void *tfind __P ((__const void * __key, void *__const * __rootp,
__compar_fn_t compar));
-extern void *__tfind __P ((__const void * __key, __const void ** __rootp,
+extern void *__tfind __P ((__const void * __key, void *__const * __rootp,
__compar_fn_t compar));
+/* Remove the element matching KEY from the tree pointed to by *ROOTP. */
extern void *tdelete __P ((__const void * __key, void ** __rootp,
__compar_fn_t compar));
extern void *__tdelete __P ((__const void * __key, void ** __rootp,
@@ -128,10 +133,22 @@ typedef void (*__action_fn_t) __P ((__const void *__nodep,
int __level));
#endif
+/* Walk through the whole tree and call the ACTION callback for every node
+ or leaf. */
extern void twalk __P ((__const void * __root, __action_fn_t action));
extern void __twalk __P ((__const void * __root, __action_fn_t action));
+#ifdef __USE_GNU
+/* Callback type for function to free a tree node. If the keys are atomic
+ data this function should do nothing. */
+typedef void (*__free_fn_t) __P ((void *__nodep));
+
+/* Destroy the whole tree, call FREEFCT for each node or leaf. */
+extern void __tdestroy __P ((void *__root, __free_fn_t freefct));
+extern void tdestroy __P ((void *__root, __free_fn_t freefct));
+#endif
+
/* Perform linear search for KEY by comparing by COMPAR in an array
[BASE,BASE+NMEMB*SIZE). */