X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firnodeset.h;h=2c298aa9b6794f6c4965363e98cbd1e720a3432b;hb=3c3425a50a1d721b74a015c6812257e32feeac85;hp=6e5a51e6a9d86e0d9eaffcf8eea56c52061384b4;hpb=eb08138c6b80c169945568e4414f491a9bc20388;p=libfirm

diff --git a/ir/ir/irnodeset.h b/ir/ir/irnodeset.h
index 6e5a51e6a..2c298aa9b 100644
--- a/ir/ir/irnodeset.h
+++ b/ir/ir/irnodeset.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 1995-2007 University of Karlsruhe.  All right reserved.
+ * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
  *
  * This file is part of libFirm.
  *
@@ -23,24 +23,31 @@
  * @date      30.03.2007
  * @brief     A nodeset. This should be prefered over a simple pset, because it
  *            tries to guarantee deterministic behavior. (and is faster)
- * @version   $Id$
+ * @note      Actually the bits to make the behaviour deterministic are not
+ *            implemented yet...
  */
 #ifndef _FIRM_IRNODESET_H_
 #define _FIRM_IRNODESET_H_
 
-#include "irnode.h"
+#include <stdbool.h>
+#include "firm_types.h"
 #include "xmalloc.h"
 
 #define HashSet          ir_nodeset_t
 #define HashSetIterator  ir_nodeset_iterator_t
 #define ValueType        ir_node*
 #define DO_REHASH
+
 #include "hashset.h"
+
 #undef DO_REHASH
 #undef ValueType
 #undef HashSetIterator
 #undef HashSet
 
+typedef struct ir_nodeset_t          ir_nodeset_t;
+typedef struct ir_nodeset_iterator_t ir_nodeset_iterator_t;
+
 /**
  * Initializes a nodeset with default size.
  *
@@ -70,8 +77,8 @@ void ir_nodeset_destroy(ir_nodeset_t *nodeset);
  * @param expected_elements   Number of elements expected in the nodeset (roughly)
  * @return The initialized nodeset
  */
-static INLINE ir_nodeset_t *ir_nodeset_new(size_t expected_elements) {
-	ir_nodeset_t *res = xmalloc(sizeof(*res));
+static inline ir_nodeset_t *ir_nodeset_new(size_t expected_elements) {
+	ir_nodeset_t *res = XMALLOC(ir_nodeset_t);
 	ir_nodeset_init_size(res, expected_elements);
 	return res;
 }
@@ -79,7 +86,7 @@ static INLINE ir_nodeset_t *ir_nodeset_new(size_t expected_elements) {
 /**
  * Destroys a nodeset and frees the memory of the nodeset itself.
  */
-static INLINE void ir_nodeset_del(ir_nodeset_t *nodeset) {
+static inline void ir_nodeset_del(ir_nodeset_t *nodeset) {
 	ir_nodeset_destroy(nodeset);
 	xfree(nodeset);
 }
@@ -89,10 +96,11 @@ static INLINE void ir_nodeset_del(ir_nodeset_t *nodeset) {
  *
  * @param nodeset   Pointer to the nodeset
  * @param node      node to insert into the nodeset
- * @returns         1 if the element has been inserted,
- *                  0 if it was already there
+ * @returns         true if the element has been inserted,
+ *                  false if it was already there
  */
-int ir_nodeset_insert(ir_nodeset_t *nodeset, ir_node *node);
+bool ir_nodeset_insert(ir_nodeset_t *nodeset, ir_node *node);
+
 
 /**
  * Removes a node from a nodeset. Does nothing if the nodeset doesn't contain
@@ -108,9 +116,8 @@ void ir_nodeset_remove(ir_nodeset_t *nodeset, const ir_node *node);
  *
  * @param nodeset   Pointer to the nodeset
  * @param node      The pointer to find
- * @returns         1 if nodeset contains the node, 0 else
  */
-int ir_nodeset_contains(const ir_nodeset_t *nodeset, const ir_node *node);
+bool ir_nodeset_contains(const ir_nodeset_t *nodeset, const ir_node *node);
 
 /**
  * Returns the number of pointers contained in the nodeset
@@ -150,9 +157,17 @@ ir_node *ir_nodeset_iterator_next(ir_nodeset_iterator_t *iterator);
 void ir_nodeset_remove_iterator(ir_nodeset_t *nodeset,
                                 const ir_nodeset_iterator_t *iterator);
 
+static inline ir_node *ir_nodeset_first(ir_nodeset_t const *const nodeset)
+{
+	ir_nodeset_iterator_t iter;
+	ir_nodeset_iterator_init(&iter, nodeset);
+	return ir_nodeset_iterator_next(&iter);
+}
+
 #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