lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-07-30 22:43:12 +03:00
Code Activity

[BZ #2766]

Browse Source 
2006-06-14  Jakub Jelinek  <jakub@redhat.com>
	[BZ #2766]
	* misc/insremque.c (insque): Handle prev == NULL.
	* misc/Makefile (tests): Add tst-insremque.
	* misc/tst-insremque.c: New test.
This commit is contained in:
Ulrich Drepper
2006-06-17 17:01:42 +00:00
parent ac55a25bfc
commit f9b7a98b18
4 changed files with 84 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
misc/insremque.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1992, 1995, 1996 Free Software Foundation, Inc.
/* Copyright (C) 1992, 1995, 1996, 2006 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
@ -24,12 +24,20 @@
void
insque (void *elem, void *prev)
{
struct qelem *next = ((struct qelem *) prev)->q_forw;
((struct qelem *) prev)->q_forw = (struct qelem *) elem;
if (next != NULL)
next->q_back = (struct qelem *) elem;
((struct qelem *) elem)->q_forw = next;
((struct qelem *) elem)->q_back = (struct qelem *) prev;
if (prev == NULL)
{
((struct qelem *) elem)->q_forw = NULL;
((struct qelem *) elem)->q_back = NULL;
}
else
{
struct qelem *next = ((struct qelem *) prev)->q_forw;
((struct qelem *) prev)->q_forw = (struct qelem *) elem;
if (next != NULL)
next->q_back = (struct qelem *) elem;
((struct qelem *) elem)->q_forw = next;
((struct qelem *) elem)->q_back = (struct qelem *) prev;
}
}
/* Unlink ELEM from the doubly-linked list that it is in. */