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authorRoland McGrath <roland@gnu.org>1995-03-01 06:28:14 +0000
committerRoland McGrath <roland@gnu.org>1995-03-01 06:28:14 +0000
commit30e77772456f3d31373bf1bd002af5b498496e08 (patch)
treee7613c50583726e92d86edb441869d1971ee299a /misc/search.h
parente32a795748e59aaedd7d034dcdbf6fffb2f17f80 (diff)
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Wed Mar 1 00:57:47 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
	* misc/search.h: New file.
	* misc/Makefile (headers): Add search.h.
	* misc/insremque.c: Include search.h.
	(struct qelem): Type removed.
Diffstat (limited to 'misc/search.h')
-rw-r--r--misc/search.h49
1 files changed, 49 insertions, 0 deletions
diff --git a/misc/search.h b/misc/search.h
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+++ b/misc/search.h
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+/* search.h -- declarations for `insque' and `remque'
+Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+/* These functions are provided for compatibility with BSD.  */
+
+#ifndef _SEARCH_H
+#define	_SEARCH_H 1
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+
+/* Prototype structure for a linked-list data structure.
+   This is the type used by the `insque' and `remque' functions.  */
+
+struct qelem
+  {
+    struct qelem *q_forw;
+    struct qelem *q_back;
+    char q_data[1];
+  };
+
+
+/* Insert ELEM into a doubly-linked list, after PREV.  */
+extern void insque __P ((struct qelem *__elem, struct qelem *__prev));
+
+/* Unlink ELEM from the doubly-linked list that it is in.  */
+extern void remque __P ((struct qelem *elem))
+
+
+__END_DECLS
+
+#endif	/* search.h */