newlib/winsup/cygwin/libc/xsique.cc
Corinna Vinschen ead5b131e0 * Makefile.in (DLL_OFILES): Add xsique.o.
* cygwin.din (confstr): Make NOSIGFE.
	(insque): Export.
	(remque): Export.
	* lsearch.cc: Remove superfluous _SEARCH_PRIVATE define.
	* posix.sgml: Move insque to defined SUSv3 interfaces.  Remove
	comment for remque.
	* include/search.h: Remove _SEARCH_PRIVATE guarded definitions.
	Add struct qelem definition.  Add insque and remque declarations.
	* include/cygwin/version.h: Bump API minor number.
	* include/sys/queue.h: Remove insque/remque definitions so as not
	to collide with SUSv3 compatible declaration in search.h.
	* libc/xsique.cc: New file implementing insque and remque.
2007-06-12 15:24:46 +00:00

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/* xsique.cc. XSI insque and remque functions.
Copyright 2007 Red Hat, Inc.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include <search.h>
extern "C" void
insque (void *velement, void *vpred)
{
if (!velement)
return;
struct qelem *element = (struct qelem *) velement;
struct qelem *pred = (struct qelem *) vpred;
struct qelem *succ;
if (pred)
{
if ((succ = element->q_forw = pred->q_forw))
succ->q_back = element;
pred->q_forw = element;
}
else
element->q_forw = NULL;
element->q_back = pred;
}
extern "C" void
remque (void *velement)
{
if (!velement)
return;
struct qelem *pred = ((struct qelem *) velement)->q_back;
struct qelem *succ = ((struct qelem *) velement)->q_forw;
if (succ)
succ->q_back = pred;
if (pred)
pred->q_forw = succ;
}