fix bug with integer

source/main.cpp

@@ -14,7 +14,6 @@ int main(int argc, char *argv[])
 {
   //Declarations
   int num_steps;
-  int fail = 1;
   state_type state;
   char config[256];
   LOOP loop;
@@ -75,6 +74,7 @@ int main(int argc, char *argv[])
     // Start integration loop
     while(t<loop->parameters.total_time)
     {
+      int fail = 1;
       int num_failures = 0;
       while(fail>0)
       {
@@ -106,8 +106,7 @@ int main(int argc, char *argv[])
   {
     // Constant timestep integration
     num_steps = boost::numeric::odeint::integrate_const( controlled_stepper, loop->CalculateDerivs, state, loop->parameters.tau, loop->parameters.total_time, loop->parameters.tau, obs->Observe);
-    fail = obs->CheckNan(state);
-    if(fail)
+    if(obs->CheckNan(state))
     {
         throw std::runtime_error("NaNs were detected in the output.  Check the input configuration.");
     }