class CColorAmount

The size should not be over 1 when calling Color and Value

Author: hihiben

src/amount.h

@@ -9,6 +9,7 @@
 #include "serialize.h"
 
 #include <iostream>
+#include <stdexcept>
 #include <stdlib.h>
 #include <string>
 
@@ -286,20 +287,18 @@ class CColorAmount : public colorAmount_t
 
     type_Color Color() const
     {
-        if (this->size() == 1)
-            return this->begin()->first;
-        else
-            return -1;
+        if (this->size() != 1)
+            throw std::runtime_error("CColorAmount::Color(): The size of color amount should be 1.");
+        return this->begin()->first;
     }
 
     CAmount Value() const
     {
-        if (this->size() == 1)
-            return this->begin()->second;
-        else if (this->size() == 0)
+        if (this->size() == 0)
             return 0;
-        else
-            return -1;
+        if (this->size() != 1)
+            throw std::runtime_error("CColorAmount::Value(): The size of color amount should be 0 or 1.");
+        return this->begin()->second;
     }
 
     CAmount TotalValue() const