X-Git-Url: https://git.xandkar.net/?a=blobdiff_plain;f=003%2Fsrc%2Flife.erl;h=ddb5115c578ce6d3c433df0aaef859911f352042;hb=af47aa3763380022a5f39d7f8c2c662db9f03766;hp=74868da09e63fe754a3bb5938080eead4d11e432;hpb=1332e0c3c23643c3eeac5e3d7a64dcac4591e488;p=cellular-automata.git

diff --git a/003/src/life.erl b/003/src/life.erl
index 74868da..ddb5115 100644
--- a/003/src/life.erl
+++ b/003/src/life.erl
@@ -61,7 +61,12 @@ life_loop(
         end
     ),
 
-    {NewTime, NewBoard} = timer:tc(fun() -> next_generation(X, Y, Board) end),
+    {NewTime, NewBoard} = timer:tc(
+        fun() ->
+            next_generation(X, Y, Board)
+        end
+    ),
+
     NewState = State#state{board        = NewBoard
                           ,gen_count    = GenCount + 1
                           ,gen_duration = NewTime
@@ -89,6 +94,9 @@ do_print_status(Bar, X, Y, N, GenCount, TimeMic, PrintTimeMic) ->
 
 
 do_print_board(Board) ->
+    % It seems that just doing a fold should be faster than map + to_list
+    % combo, but, after measuring several times, map + to_list has been
+    % consistently (nearly twice) faster than either foldl or foldr.
     RowStrings = array:to_list(
         array:map(
             fun(_, Row) ->