adding a initialStep() function to SimulatorTimer

to indicate if the current step is the inital step.

opm/core/simulator/SimulatorTimer.cpp

@@ -63,6 +63,12 @@ namespace Opm
         start_date_ = start_time.date();
     }
 
+    /// Whether the current step is the first step.
+    bool SimulatorTimer::initialStep() const
+    {
+        return (current_step_ == 0);
+    }
+
     /// Total number of steps.
     int SimulatorTimer::numSteps() const
     {

opm/core/simulator/SimulatorTimer.hpp

@@ -49,6 +49,9 @@ namespace Opm
         /// Use the SimulatorTimer as a shim around opm-parser's Opm::TimeMap
         void init(TimeMapConstPtr timeMap, size_t report_step = 0);
 
+        /// Whether the current step is the first step.
+        bool initialStep() const;
+
         /// Total number of steps.
         int numSteps() const;