chris all is working as it should now, you were right but i found some weird behavior.

everytime i pass float types or double or long double, etc qvariant class emit a crash, i tried with almost any other type including QT ones and it work perfectly it just crash with floating point values

here is the back trace

#0 0x00007ffff6787383 in QVariant::~QVariant() () from /usr/lib/libQtCore.so.4
#1 0x00007ffff7bd9935 in RDCI::RDebugData::~RDebugData (this=0x60a940, __in_chrg=<value optimized out>) at rdcitypes_p.hpp:9
#2 0x00007ffff7bd9a07 in QSharedDataPointer<RDCI::RDebugData>::~QSharedData Pointer (this=0x7fffffffe008,
__in_chrg=<value optimized out>) at /usr/include/qt4/QtCore/qshareddata.h:90
#3 0x00007ffff7bd938e in RDCI::RDebug::~RDebug (this=0x7fffffffe000, __in_chrg=<value optimized out>) at rdcitypes.cpp:5
#4 0x000000000040189e in main (argc=1, argv=0x7fffffffe178) at ../rdcitest/main.cpp:10

my code

main.cpp
Qt Code: 
  1. #include <QtCore/QCoreApplication>
  2. #include "rdcitypes.hpp"
  3. int main(int argc, char *argv[])
  4. {
  5.     QCoreApplication a(argc, argv);
  6.     using namespace std;
  7.     using namespace RDCI;
  8.     QString var = "hola";
  9.     float var2 = 500;
  10.     RDebug  prueba;
  11.     cout << prueba.saveValues(var2) << endl;
  12.     cout << prueba.getSourceLocation().toStdString() << endl;
  13.     cout << prueba.getSize() << endl;
  14.     return 0;
  15. }
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rdcitypes_p.hpp
Qt Code: 
  1. #ifndef RDCITYPES_P_H
  2. #define RDCITYPES_P_H
  3.  
  4. #include "definitions.hpp"
  5.  
  6. namespace RDCI
  7. {
  8. 	class SO_LOCAL RDebugData : public QSharedData
  9. 	{
  10. 	public:
  11. 		RDebugData()
  12. 		{}
  13. 		RDebugData(const RDebugData &other)
  14. 				: QSharedData(other), fileName(other.fileName), sourceLocation(other.sourceLocation), varName(other.varName), lineNumber(other.lineNumber), Value(other.Value), size(other.size)
  15. 		{ }
  16. 		~RDebugData()
  17. 		{}
  18. 		QString fileName, sourceLocation, varName;
  19. 		quint64 lineNumber, size;
  20. 		QVariant Value;
  21. 	};
  22. }
  23. #endif
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rdcitypes.hpp
Qt Code: 
  1. #ifndef RDCITYPES_H
  2. #define RDCITYPES_H
  3.  
  4. #include "rdcitypes_p.hpp"
  5.  
  6. namespace RDCI
  7. {
  8.     class RDebugData;
  9.     class SO_PUBLIC RDebug
  10.     {
  11.     public:
  12.         RDebug()
  13.         {
  14.             d = new RDebugData;
  15.         }
  16.         RDebug(const RDebug &other): d (other.d)
  17.         {}
  18.         virtual ~RDebug();
  19.         bool isEmpty();
  20.         QVariant getValue() const
  21.         {
  22.             return d->Value;
  23.         }
  24.         QString getFileName() const
  25.         {
  26.             return d->fileName;
  27.         }
  28.         QString getSourceLocation() const
  29.         {
  30.             return d->sourceLocation;
  31.         }
  32.         QString getVarName() const
  33.         {
  34.             return d->varName;
  35.         }
  36.         quint64 getLineNumber() const
  37.         {
  38.             return d->lineNumber;
  39.         }
  40.         quint64 getSize() const
  41.         {
  42.             return d->size;
  43.         }
  44.         template <typename U>
  45.         U saveValues_p(U const &value, const QString &varname, quint64 linenumber, const QString &filename, const QString &sourcelocation, const quint64 size)
  46.         {
  47.             d->varName = varname;
  48.             d->lineNumber = linenumber;
  49.             d->fileName = filename;
  50.             d->sourceLocation = sourcelocation;
  51.             d->Value = value;
  52.             d->size = size;
  53.             return value;
  54.         }
  55.     private:
  56.         QSharedDataPointer<RDebugData> d;
  57.     };
  58.  
  59. }
  60. #endif // RDCITYPES_H
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definition.hpp
Qt Code: 
  1. ifndef DEFINITIONS_H
  2. #define	DEFINITIONS_H
  3.  
  4. #include <QtPlugin>
  5. #include <QObject>
  6. #include <QMetaType>
  7. #include <QSharedData>
  8. #include <QSharedDataPointer>
  9. #include <QtCore/QVariant>
  10. #include <QtDBus/QDBusConnection>
  11. #include <QtDBus/QDBusMessage>
  12. #include <QtDBus/QtDBus>
  13. #include <QtCore/QList>
  14.  
  15. #include <sys/types.h>
  16. #include <iostream>
  17. #include <algorithm>
  18.  
  19. namespace RDCI
  20. {
  21.  
  22. #if __GNUC__ >= 4
  23. #define SO_PUBLIC __attribute__ ((visibility("default")))
  24. #define SO_LOCAL  __attribute__ ((visibility("hidden")))
  25. #define saveValues(value) \
  26. 				saveValues_p( value, #value, __LINE__, __FILE__, __PRETTY_FUNCTION__, sizeof(value))
  27. #endif
  28. }
  29. #endif	/* DEFINITIONS_H */
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