[Freeciv-Dev] (PR#13778) [Patch] Fix to ai_select_tech() crash

["Marko Lindqvist" <marko.lindqvist@xxxxxxxxxxx>]

<URL: http://bugs.freeciv.org/Ticket/Display.html?id=13778 >


  ai_select_tech() sometimes sets want for all available techs to zero 
(this is somewhat suspicios in itself). As a result, it returns A_UNSET 
as wanted tech.
  Fix attached.


  - ML


diff -Nurd -X.diff_ignore freeciv/ai/aitech.c freeciv/ai/aitech.c
--- freeciv/ai/aitech.c 2005-08-25 18:55:33.625000000 +0300
+++ freeciv/ai/aitech.c 2005-08-25 18:58:57.421875000 +0300
@@ -64,6 +64,8 @@
 
   memset(values, 0, sizeof(values));
   memset(goal_values, 0, sizeof(goal_values));
+  values[A_UNSET] = -1;
+  goal_values[A_UNSET] = -1;
 
   /* Fill in values for the techs: want of the tech 
    * + average want of those we will discover en route */