Initialize all class parameters.

include/ensmallen_bits/pso/update_policies/lbest_update.hpp

@@ -73,7 +73,8 @@ class LBestUpdate
      *
      * @param parent Instantiated parent class.
      */
-     Policy(const LBestUpdate& /* parent */) { /* Do nothing. */ }
+     Policy(const LBestUpdate& /* parent */) : n(0)
+     { /* Do nothing. */ }
 
      /**
       * The Initialize method is called by PSO Optimizer method before the

include/ensmallen_bits/sgdr/snapshot_ensembles.hpp

@@ -64,6 +64,7 @@ class SnapshotEnsembles
     constStepSize(stepSize),
     nextRestart(epochRestart),
     batchRestart(0),
+    epochBatches(0),
     epoch(0)
   {
     snapshotEpochs = 0;

include/ensmallen_bits/spalera_sgd/spalera_stepsize.hpp

@@ -52,7 +52,8 @@ class SPALeRAStepsize
                   const double adaptRate = 3.10e-8) :
       alpha(alpha),
       epsilon(epsilon),
-      adaptRate(adaptRate)
+      adaptRate(adaptRate),
+      lambda(0)
   {
     /* Nothing to do here. */
   }