Debugger: Tweaks for float values.

FloatValue:
- Store value as variant rather than double so as to be able to
  later differentiate between float vs double.

PrimitiveValueNode:
- Construct float nodes with variant value.

src/apps/debugger/value/value_nodes/PrimitiveValueNode.cpp

@@ -77,7 +77,7 @@ PrimitiveValueNode::ResolvedLocationAndValue(ValueLoader* valueLoader,
 	else if (BVariant::TypeIsInteger(valueType))
 		value = new(std::nothrow) IntegerValue(valueData);
 	else if (BVariant::TypeIsFloat(valueType))
-		value = new(std::nothrow) FloatValue(valueData.ToDouble());
+		value = new(std::nothrow) FloatValue(valueData);
 	else
 		return B_UNSUPPORTED;
 

src/apps/debugger/value/values/FloatValue.cpp

@@ -9,7 +9,7 @@
 #include <stdio.h>
 
 
-FloatValue::FloatValue(double value)
+FloatValue::FloatValue(const BVariant& value)
 	:
 	fValue(value)
 {
@@ -25,7 +25,21 @@ bool
 FloatValue::ToString(BString& _string) const
 {
 	char buffer[128];
-	snprintf(buffer, sizeof(buffer), "%g", fValue);
+
+	switch (fValue.Type()) {
+		case B_FLOAT_TYPE:
+		{
+			snprintf(buffer, sizeof(buffer), "%f", fValue.ToFloat());
+			break;
+		}
+		case B_DOUBLE_TYPE:
+		{
+			snprintf(buffer, sizeof(buffer), "%g", fValue.ToDouble());
+			break;
+		}
+		default:
+			return false;
+	}
 
 	BString string(buffer);
 	if (string.Length() == 0)

src/apps/debugger/value/values/FloatValue.h

@@ -1,4 +1,4 @@
-/*
+	/*
  * Copyright 2009, Ingo Weinhold, [email protected].
  * Distributed under the terms of the MIT License.
  */
@@ -11,10 +11,10 @@
 
 class FloatValue : public Value {
 public:
-								FloatValue(double value);
+								FloatValue(const BVariant& value);
 	virtual						~FloatValue();
 
-			double				GetValue() const
+			BVariant			GetValue() const
 									{ return fValue; }
 
 	virtual	bool				ToString(BString& _string) const;
@@ -23,7 +23,7 @@ public:
 	virtual	bool				operator==(const Value& other) const;
 
 private:
-			double				fValue;
+			BVariant			fValue;
 };