lists.c
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lists.c
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	/*
	* Copyright 2004-2022 the Pacemaker project contributors
	*
	* The version control history for this file may have further details.
	*
	* This source code is licensed under the GNU Lesser General Public License
	* version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
	*/

	#include <crm_internal.h>
	#include <crm/common/lists_internal.h>

	GList*
	pcmk__subtract_lists(GList from, const GList items, GCompareFunc cmp)
	{
	GList *result = g_list_copy(from);

	for (const GList *item = items; item != NULL; item = item->next) {
	GList *match = g_list_find_custom(result, item->data, cmp);

	if (match != NULL) {
	result = g_list_remove(result, match->data);
	}
	}

	return result;
	}