Changes in / [983:949510b70df9:977:4f8b22521b4a] in lemon

File:

• lemon/preflow.h (modified) (3 diffs)

lemon/preflow.h

@@ -559 +559 @@
       _phase = true;
 
-      while (true) {
+      Node n = _level->highestActive();
+      int level = _level->highestActiveLevel();
+      while (n != INVALID) {
         int num = _node_num;
 
-        Node n = INVALID;
-        int level = -1;
-
-        while (num > 0) {
-          n = _level->highestActive();
-          if (n == INVALID) goto first_phase_done;
-          level = _level->highestActiveLevel();
-          --num;
-          
+        while (num > 0 && n != INVALID) {
           Value excess = (*_excess)[n];
           int new_level = _level->maxLevel();
@@ -636 +630 @@
             _level->deactivate(n);
           }
+
+          n = _level->highestActive();
+          level = _level->highestActiveLevel();
+          --num;
         }
 
         num = _node_num * 20;
-        while (num > 0) {
-          while (level >= 0 && _level->activeFree(level)) {
-            --level;
-          }
-          if (level == -1) {
-            n = _level->highestActive();
-            level = _level->highestActiveLevel();
-            if (n == INVALID) goto first_phase_done;
-          } else {
-            n = _level->activeOn(level);
-          }
-          --num;
-
+        while (num > 0 && n != INVALID) {
           Value excess = (*_excess)[n];
           int new_level = _level->maxLevel();
@@ -717 +703 @@
             _level->deactivate(n);
           }
-        }
-      }
-    first_phase_done:;
+
+          while (level >= 0 && _level->activeFree(level)) {
+            --level;
+          }
+          if (level == -1) {
+            n = _level->highestActive();
+            level = _level->highestActiveLevel();
+          } else {
+            n = _level->activeOn(level);
+          }
+          --num;
+        }
+      }
     }