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Diffstat (limited to 'newlib/libc/search/tsearch.3')
| -rw-r--r-- | newlib/libc/search/tsearch.3 | 118 |
1 files changed, 0 insertions, 118 deletions
diff --git a/newlib/libc/search/tsearch.3 b/newlib/libc/search/tsearch.3 deleted file mode 100644 index a36fe894f..000000000 --- a/newlib/libc/search/tsearch.3 +++ /dev/null @@ -1,118 +0,0 @@ -.\" $NetBSD$ -.\" Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com> -.\" All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. The name of the author may not be used to endorse or promote products -.\" derived from this software without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, -.\" INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY -.\" AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL -.\" THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, -.\" EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, -.\" PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; -.\" OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, -.\" WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR -.\" OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF -.\" ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -.\" -.\" OpenBSD: tsearch.3,v 1.2 1998/06/21 22:13:49 millert Exp -.\" $FreeBSD: src/lib/libc/stdlib/tsearch.3,v 1.7 2001/09/07 14:46:36 asmodai Exp $ -.\" -.Dd June 15, 1997 -.Dt TSEARCH 3 -.Os -.Sh NAME -.Nm tsearch , tfind , tdelete , twalk -.Nd manipulate binary search trees -.Sh SYNOPSIS -.In search.h -.Ft void * -.Fn tdelete "const void *key" "void **rootp" "int (*compar) (const void *, const void *)" -.Ft void * -.Fn tfind "const void *key" "void **rootp" "int (*compar) (const void *, const void *)" -.Ft void * -.Fn tsearch "const void *key" "void **rootp" "int (*compar) (const void *, const void *)" -.Ft void -.Fn twalk "const void *root" "void (*compar) (const void *, VISIT, int)" -.Sh DESCRIPTION -The -.Fn tdelete , -.Fn tfind , -.Fn tsearch , -and -.Fn twalk -functions manage binary search trees based on algorithms T and D -from Knuth (6.2.2). The comparison function passed in by -the user has the same style of return values as -.Xr strcmp 3 . -.Pp -.Fn Tfind -searches for the datum matched by the argument -.Fa key -in the binary tree rooted at -.Fa rootp , -returning a pointer to the datum if it is found and NULL -if it is not. -.Pp -.Fn Tsearch -is identical to -.Fn tfind -except that if no match is found, -.Fa key -is inserted into the tree and a pointer to it is returned. If -.Fa rootp -points to a NULL value a new binary search tree is created. -.Pp -.Fn Tdelete -deletes a node from the specified binary search tree and returns -a pointer to the parent of the node to be deleted. -It takes the same arguments as -.Fn tfind -and -.Fn tsearch . -If the node to be deleted is the root of the binary search tree, -.Fa rootp -will be adjusted. -.Pp -.Fn Twalk -walks the binary search tree rooted in -.Fa root -and calls the function -.Fa action -on each node. -.Fa Action -is called with three arguments: a pointer to the current node, -a value from the enum -.Sy "typedef enum { preorder, postorder, endorder, leaf } VISIT;" -specifying the traversal type, and a node level (where level -zero is the root of the tree). -.Sh SEE ALSO -.Xr bsearch 3 , -.Xr hsearch 3 , -.Xr lsearch 3 -.Sh RETURN VALUES -The -.Fn tsearch -function returns NULL if allocation of a new node fails (usually -due to a lack of free memory). -.Pp -.Fn Tfind , -.Fn tsearch , -and -.Fn tdelete -return NULL if -.Fa rootp -is NULL or the datum cannot be found. -.Pp -The -.Fn twalk -function returns no value. |