add new global constants

conf/global.constant

@@ -10,4 +10,6 @@ useSalt:true
 BS_STR:MIN
 BS_IA:MIN
 BS_IH:MIN
+#true or false
+USE_ASHE:true
 other:1

util/constants.cc

@@ -108,10 +108,20 @@ globalConstants initGlobalConstants(){
                 POINT
                 assert(0);
             }
+        }else if(head == "USE_ASHE") {
+            std::string sub = line.substr(index+1);
+            if(sub=="true"){
+                res.USE_ASHE = true;
+            }else if(sub=="false"){
+                res.USE_ASHE = false;
             }else{
                 POINT
                 assert(0);
             }
+        }else {
+            POINT
+            assert(0);
+        }
     }
     /* the following values need not be determined 
        at runtime.*/

util/constants.hh

@@ -21,6 +21,7 @@ struct globalConstants{
     int BS_STR;
     int BS_IA;
     int BS_IH;
+    bool USE_ASHE;
     std::string logFile;/*file name for log*/
 };