Initial testing of the preprocessor.

src/libs/cplusplus/pp-engine.cpp

@@ -481,6 +481,21 @@ void Preprocessor::popState()
     _savedStates.removeLast();
 }
 
+QByteArray Preprocessor::operator()(const QByteArray &filename,
+                                    const QByteArray &source)
+{
+    QByteArray preprocessed;
+    operator()(filename, source, &preprocessed);
+    return preprocessed;
+}
+
+QByteArray Preprocessor::operator()(const QByteArray &source)
+{
+    QByteArray preprocessed;
+    operator()(source, &preprocessed);
+    return preprocessed;
+}
+
 void Preprocessor::operator () (const QByteArray &filename,
                       const QByteArray &source,
                       QByteArray *result)

src/libs/cplusplus/pp-engine.h

@@ -181,6 +181,11 @@ namespace CPlusPlus {
     public:
         Preprocessor(Client *client, Environment &env);
 
+        QByteArray operator()(const QByteArray &filename,
+                              const QByteArray &source);
+
+        QByteArray operator()(const QByteArray &source);
+
         void operator()(const QByteArray &filename,
                         const QByteArray &source,
                         QByteArray *result);