Fix an external ref

[simgrid.git] / src / xbt / setset.c

diff --git a/src/xbt/setset.c b/src/xbt/setset.c
index e01e105..1e0dd05 100644 (file)
--- a/src/xbt/setset.c
+++ b/src/xbt/setset.c
@@ -3,6 +3,22 @@
 #include <string.h>
 #include "setset_private.h"
 #include "xbt/sysdep.h"
+#include "simgrid_config.h" /*_XBT_WIN32*/
+
+/*The function ffs doesn't exist for windows*/
+#ifdef _XBT_WIN32
+       int ffs(int bits)
+    {
+               int i;
+               if (bits == 0)
+                       return (0);
+               for (i = 1; ; i++, bits >>= 1)
+               {
+                       if (bits & 1) break;
+               }
+               return (i);
+       }
+#endif
 
 /**
  *  \brief Create a new setset data structure