Handle several coverity issues

Author: ckormanyos

Diff for: examples/example012_rsa_crypto.cpp

@@ -81,13 +81,13 @@ namespace local_rsa
           return b;
         }
 
-        local_integer_type tmp_x;
-        local_integer_type tmp_y;
+        local_integer_type tmp_x { };
+        local_integer_type tmp_y { };
 
         local_integer_type gcd_ext = extended_euclidean(b % a, a, &tmp_x, &tmp_y);
 
-        *x = tmp_y - ((b / a) * tmp_x);
-        *y = tmp_x;
+        *x = std::move(tmp_y - ((b / a) * tmp_x));
+        *y = std::move(tmp_x);
 
         return gcd_ext;
       }
@@ -258,7 +258,10 @@ namespace local_rsa
 
       euclidean::extended_euclidean(a, b, &x, &s);
 
-      s = is_neg(s) ? make_positive(s, phi_of_m) : s;
+      if(is_neg(s))
+      {
+        s = std::move(make_positive(s, phi_of_m));
+      }
 
       private_key = private_key_type { s, my_p, my_q };
     }

Diff for: examples/example014_pi_spigot_wide.cpp

@@ -137,10 +137,12 @@ namespace example014_pi_spigot
               - i
             );
 
-          const auto di =
-            ((j == static_cast<std::uint32_t>(UINT8_C(0)))
-              ? static_cast<unsigned_large_type>(d_init())
-              : static_cast<unsigned_large_type>(my_pi_in[my_index]));
+          unsigned_large_type di { my_pi_in[my_index] };
+
+          if(j == static_cast<std::uint32_t>(UINT8_C(0)))
+          {
+            di = std::move(static_cast<unsigned_large_type>(d_init()));
+          }
 
           val_d += (di * local_pow10);