update lualibs-set.lua

1 files changed, 5 insertions, 2 deletions

diff --git a/lualibs-set.lua b/lualibs-set.lua
index f844d0b..2370f01 100644
--- a/lualibs-set.lua
+++ b/lualibs-set.lua
@@ -6,6 +6,8 @@ if not modules then modules = { } end modules ['l-set'] = {
     license   = "see context related readme files"
 }
 
+-- This will become obsolete when we have the bitset library embedded.
+
 set = set or { }
 
 local nums   = { }
@@ -49,10 +51,11 @@ function set.tolist(n)
     if n == 0 or not tabs[n] then
         return ""
     else
-        local t = { }
+        local t, n = { }, 0
         for k, v in next, tabs[n] do
             if v then
-                t[#t+1] = k
+                n = n + 1
+                t[n] = k
             end
         end
         return concat(t," ")