From fd6bb20116127f6ac903d4b03abac72a49baa1ae Mon Sep 17 00:00:00 2001 From: fishsoupisgood Date: Sat, 27 Apr 2019 22:20:21 +0100 Subject: fish --- dl_sort.c | 83 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) create mode 100644 dl_sort.c (limited to 'dl_sort.c') diff --git a/dl_sort.c b/dl_sort.c new file mode 100644 index 0000000..729158e --- /dev/null +++ b/dl_sort.c @@ -0,0 +1,83 @@ +/* + * Copyright 1996-2002 - Karl R. Hakimian and David Fries + * + * This file is part of datalink. + * + * Datalink is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Datalink 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with datalink (see COPYING); if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include +#include "datalink.h" + +int dl_sort(ListPtr list, int (*cmp_proc) ()) +{ + ListPtr nl; + ItemPtr ip; + ItemPtr ni; + ItemPtr si; + ItemPtr pi; + + if ((nl = dl_new_list()) == NULL) + return ((*dl_error_proc) ("List alloc error.")); + + for (ip = list->first; ip; ip = ni) + { + ni = ip->next; + + for (pi = NULL, si = nl->first; si; si = si->next) + { + + if ((*cmp_proc) (ip, si) >= 0) + { + pi = si; + continue; + } + + if (pi) + { + ip->next = pi->next; + pi->next = ip; + } else + { + ip->next = nl->first; + nl->first = ip; + } + + nl->count++; + + if (!nl->last) + { + nl->last = ip; + ip->next = NULL; + } + + break; + + } + + if (!si) + { + dl_add_to_list(nl, ip); + ip->next = NULL; + } + + } + + list->first = nl->first; + list->last = nl->last; + free(nl); + return 0; +} -- cgit v1.2.3