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ifdef RB_PREV since 4.3 misses it too.

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This commit is contained in:
Nicholas Marriott 2008-06-04 20:17:25 +00:00
parent 879400e1f2
commit b044d0951f
1 changed files with 16 additions and 1 deletions
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17
window.c
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@ -1,4 +1,4 @@
/* $Id: window.c,v 1.39 2008-06-04 17:54:27 nicm Exp $ */
/* $Id: window.c,v 1.40 2008-06-04 20:17:25 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@ -141,7 +141,22 @@ winlink_next(unused struct winlinks *wwl, struct winlink *wl)
struct winlink *
winlink_previous(unused struct winlinks *wwl, struct winlink *wl)
{
#ifdef RB_PREV
return (RB_PREV(winlinks, wwl, wl));
#else
struct winlink *wk;
int idx = wl->idx;
wk = NULL;
wl = RB_MIN(winlinks, wwl);
while (wl != NULL && wl->idx < idx) {
wk = wl;
wl = RB_NEXT(winlinks, wwl, wl);
}
if (wl == NULL)
return (NULL);
return (wk);
#endif
}
struct window *