Add kademlia lua example

[simgrid.git] / examples / lua / kademlia / tools.lua

diff --git a/examples/lua/kademlia/tools.lua b/examples/lua/kademlia/tools.lua
new file mode 100644 (file)
index 0000000..664c342
--- /dev/null
+++ b/examples/lua/kademlia/tools.lua
@@ -0,0 +1,24 @@
+function bxor (a,b)
+  local r = 0
+  for i = 0, 31 do
+    local x = a / 2 + b / 2
+    if x ~= math.floor (x) then
+      r = r + 2^i
+    end
+    a = math.floor (a / 2)
+    b = math.floor (b / 2)
+  end
+  return r
+end
+
+function index_of(table, o)
+       for i,v in pairs(table) do
+               if v == o then
+                       return i;
+               end
+       end
+       return -1
+end
+function is_integer(x)
+return math.floor(x)==x
+end
\ No newline at end of file