}
#define foreach_ir_nodeset(nodeset, irn, iter) \
- for(ir_nodeset_iterator_init(&iter, nodeset), \
- irn = ir_nodeset_iterator_next(&iter); \
- irn != NULL; irn = ir_nodeset_iterator_next(&iter))
+ for (bool irn##__once = true; irn##__once;) \
+ for (ir_nodeset_iterator_t iter; irn##__once;) \
+ for (ir_node *irn; irn##__once; irn##__once = false) \
+ for (ir_nodeset_iterator_init(&iter, nodeset); (irn = ir_nodeset_iterator_next(&iter));)
#endif