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glsl: Add a foreach_in_list_reverse_safe macro. 

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Matt Turner 2014-12-30 16:14:25 -08:00
parent c638ea3d19
commit 579157e6c1
1 changed files with 6 additions and 0 deletions
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6
src/glsl/list.h
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@ -636,6 +636,12 @@ inline void exec_node::insert_before(exec_list *before)
__next != NULL; \
__node = __next, __next = (__type *)__next->next)
#define foreach_in_list_reverse_safe(__type, __node, __list) \
for (__type *__node = (__type *)(__list)->tail_pred, \
*__prev = (__type *)__node->prev; \
__prev != NULL; \
__node = __prev, __prev = (__type *)__prev->prev)
#define foreach_in_list_use_after(__type, __inst, __list) \
__type *(__inst); \
for ((__inst) = (__type *)(__list)->head; \