Changeset 2017 for code/branches/objecthierarchy/src/util

Timestamp:

Oct 26, 2008, 12:46:44 PM (16 years ago)

Author:

rgrieder

Message:

Changed conversion_cast≠() to omni_cast≠() and added support for dynamic_cast.
Whenever you want to convert 2 pointers, it uses static_cast if the conversion is implicit (derived to base class) and dynamic_cast otherwise.
There is a drawback however: When static_cast is not possible and at least one of the two pointers is not from a polymorphic class, you get a compiler error that tells you exactly this. But who would want to convert an int* to OrxonoxClass* ?

File:

• code/branches/objecthierarchy/src/util/Convert.h (modified) (4 diffs)

code/branches/objecthierarchy/src/util/Convert.h

@@ -139 +139 @@
                 << " to type " << typeid(ToType).name() << std::endl;
         return false;
+    }
+};
+
+// If all else fails, try a dynamic_cast for pointer types.
+template <class FromType, class ToType>
+struct ConverterFallback<FromType*, ToType*>
+{
+    static bool convert(ToType** output, FromType* const input)
+    {
+        ToType* temp = dynamic_cast<ToType*>(input);
+        if (temp)
+        {
+            *output = temp;
+            return true;
+        }
+        else
+            return false;
     }
 };
@@ -345 +362 @@
 // That means you can call it exactly like static_cast<ToType>(fromTypeValue).
 template<class ToType, class FromType>
-inline ToType conversion_cast(const FromType& input)
+inline ToType omni_cast(const FromType& input)
 {
     ToType output;
@@ -354 +371 @@
 // convert to string Shortcut
 template <class FromType>
-std::string convertToString(FromType value)
+inline std::string convertToString(FromType value)
 {
   return getConvertedValue<FromType, std::string>(value);
@@ -361 +378 @@
 // convert from string Shortcut
 template <class ToType>
-ToType convertFromString(std::string str)
+inline ToType convertFromString(std::string str)
 {
   return getConvertedValue<std::string, ToType>(str);