52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
/*
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Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#define SLIST_ADD(list, item) \
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do { \
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(item)->next = (*list); \
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(*list) = (item); \
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} while (0);
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#define SLIST_ADD_END(list, item) \
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if ((*list) == NULL) { \
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SLIST_ADD((list), (item)); \
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} else { \
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void *head = (*list); \
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while ((*list)->next) \
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(*list) = (*list)->next; \
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(*list)->next = (item); \
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(item)->next = NULL; \
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(*list) = head; \
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}
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#define SLIST_REMOVE(list, item) \
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if ((*list) == (item)) { \
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(*list) = (item)->next; \
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} else { \
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void *head = (*list); \
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while ((*list)->next && (*list)->next != (item)) \
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(*list) = (*list)->next; \
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if ((*list)->next != NULL) { \
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(*list)->next = (*list)->next->next; \
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} \
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(*list) = head; \
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}
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