Uninitialised variables triggering warnings in DDT

examples/main.c

@@ -81,7 +81,7 @@ int main(int argc, char *argv[]) {
   int nr_nodes = 1, myrank = 0;
   FILE *file_thread;
   int with_outputs = 1;
-  int verbose = 0, talking;
+  int verbose = 0, talking = 0;
   unsigned long long cpufreq = 0;
 
 #ifdef WITH_MPI

src/engine.c

@@ -1974,6 +1974,7 @@ void engine_init(struct engine *e, struct space *s, float dt, int nr_threads,
   e->dt_max = dt_max;
   e->file_stats = NULL;
   e->verbose = verbose;
+  e->count_step = 0;
   e->wallclock_time = 0.f;
   engine_rank = nodeID;