Confusing error message.

Exceptions/Exceptions.h

@@ -187,7 +187,18 @@ class crash_requested: public exception
     };
 class memory_exception : public exception {};
 class how_would_that_work : public exception {};
-
+class not_enough_to_buffer : public runtime_error
+{
+public:
+    not_enough_to_buffer(string type) :
+            runtime_error(
+                    "Not enough data available for buffer. "
+                            "Maybe insufficient preprocessing" + type
+                            + ".\nFor benchmarking, you can activate reusing data by "
+                                    "adding -DINSECURE to the compiler options.")
+    {
+    }
+};
 
 
 #endif

Processor/Buffer.cpp

@@ -40,8 +40,7 @@ void BufferBase::try_rewind()
     string type;
     if (field_type and data_type)
         type = (string)" of " + field_type + " " + data_type;
-    throw runtime_error("Insufficient preprocessing" + type + ".\nFor benchmarking, "
-            "you can activate reusing data by adding -DINSECURE to the compiler options.");
+    throw not_enough_to_buffer(type);
 #endif
     file->clear(); // unset EOF flag
     file->seekg(0);

Processor/Input.cpp

@@ -47,7 +47,14 @@ void Input<T>::start(int player, int n_inputs)
             Share<T>& share = shares[player][i];
             proc.DataF.get_input(share, rr, player);
             T xi;
-            buffer.input(t);
+            try
+            {
+                buffer.input(t);
+            }
+            catch (not_enough_to_buffer& e)
+            {
+                throw runtime_error("Insufficient input data to buffer");
+            }
             t.sub(t, rr);
             t.pack(o);
             xi.add(t, share.get_share());