diff options
| author | Konstantin Belousov <kib@FreeBSD.org> | 2025-12-26 18:27:32 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2025-12-29 17:18:55 +0000 |
| commit | b0d4b059cf8425cbe094f93362a61c56a26d45f3 (patch) | |
| tree | 1f5fba55a43485191503c4a93ce7ceb26f5fa998 /lib | |
| parent | b8c99e7d912f0dad84cec80f8c4331646b87a3ec (diff) | |
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libc/stdlib/Makefile.inc | 3 | ||||
| -rw-r--r-- | lib/libc/stdlib/tsearch.3 | 25 |
2 files changed, 25 insertions, 3 deletions
diff --git a/lib/libc/stdlib/Makefile.inc b/lib/libc/stdlib/Makefile.inc index e46a8d7340b2..c311ba3d2bcc 100644 --- a/lib/libc/stdlib/Makefile.inc +++ b/lib/libc/stdlib/Makefile.inc @@ -147,4 +147,5 @@ MLINKS+=strtoul.3 strtoull.3 \ strtoul.3 strtoumax.3 MLINKS+=tsearch.3 tdelete.3 \ tsearch.3 tfind.3 \ - tsearch.3 twalk.3 + tsearch.3 twalk.3 \ + tsearch.3 tdestroy.3 diff --git a/lib/libc/stdlib/tsearch.3 b/lib/libc/stdlib/tsearch.3 index edee01cafc52..f412c37a4ef0 100644 --- a/lib/libc/stdlib/tsearch.3 +++ b/lib/libc/stdlib/tsearch.3 @@ -36,6 +36,7 @@ .In search.h .Ft void * .Fn tdelete "const void * restrict key" "posix_tnode ** restrict rootp" "int (*compar) (const void *, const void *)" +.Fn tdestroy "posix_tnode *root" "(void (*node_free)(void *)" .Ft posix_tnode * .Fn tfind "const void *key" "posix_tnode * const *rootp" "int (*compar) (const void *, const void *)" .Ft posix_tnode * @@ -45,6 +46,7 @@ .Sh DESCRIPTION The .Fn tdelete , +.Fn tdestroy , .Fn tfind , .Fn tsearch , and @@ -95,6 +97,13 @@ If the node to be deleted is the root of the binary search tree, will be adjusted. .Pp The +.Fn tdestroy +function destroys the whole search tree, freeing all allocated nodes. +If tree keys need special handling on free, the +.Fa node_free +function can be provided, which is called on each key. +.Pp +The .Fn twalk function walks the binary search tree rooted in @@ -128,7 +137,9 @@ is NULL or the datum cannot be found. .Pp The .Fn twalk -function returns no value. +and +.Fn tdestroy +functions return no value. .Sh EXAMPLES This example uses .Fn tsearch @@ -184,6 +195,7 @@ main(void) tdelete(four, &root, comp); twalk(root, printwalk); + tdestroy(root, NULL); return 0; } .Ed @@ -192,8 +204,17 @@ main(void) .Xr hsearch 3 , .Xr lsearch 3 .Sh STANDARDS -These functions conform to +These +.Fn tdelete , +.Fn tfind , +.Fn tsearch , +and +.Fn twalk +functions conform to .St -p1003.1-2008 . +The +.Fn tdestroy +function is the glibc extension. .Pp The .Fa posix_tnode |