Hi,

I have hex QString value 07 I need to convert it to binary, it should be 00000111, but I can only convert it to 111 (without 0), I made loop to to check values. I will need to find out how many 1 I have and use this bits as a mask, for example 11100100
1 - do something
1 - do something
1 - do something
0 - do nothing
0 - do nothing
1 - do something
0 - do nothing
0 - do nothing

My code works, But I get many warning and I guess, there is easier and more efficient way of doing this.

Qt Code: 
  1. QString str("07");
  2.     QByteArray gmeMask;
  3.     bool ok;
  4.     gmeMask=QByteArray::number(str.toLongLong(&ok,16),2);
  5.     qDebug()<< QByteArray::number(str.toLongLong(&ok,16),2);
  6.  
  7.  
  8.     for (int i=7; i>=0 ; i--)
  9.     {
  10.               if (i<gmeMask.size())
  11.         {
  12.             if(i==7||gmeMask[i]==1) qDebug()<< "gmeMask1"<<i << gmeMask[i];
  13.             if(i==6||gmeMask[i]==1) qDebug()<< "gmeMask2"<<i << gmeMask[i];
  14.             if(i==5||gmeMask[i]==1) qDebug()<< "gmeMask3"<<i << gmeMask[i];
  15.             if(i==4||gmeMask[i]==1) qDebug()<< "gmeMask4"<<i << gmeMask[i];
  16.             if(i==3||gmeMask[i]==1) qDebug()<< "gmeMask5"<<i << gmeMask[i];
  17.             if(i==2||gmeMask[i]==1) qDebug()<< "gmeMask6"<<i << gmeMask[i];
  18.             if(i==1||gmeMask[i]==1) qDebug()<< "gmeMask7"<<i << gmeMask[i];
  19.             if(i==0||gmeMask[i]==1) qDebug()<< "gmeMask8"<<i << gmeMask[i];
  20.         }
  21.     }
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Results
"111"
gmeMask6 2 1
gmeMask7 1 1
gmeMask8 0 1

Warning messages
Qt Code: 
  1. ..\bitai\mainwindow.cpp: In constructor 'MainWindow::MainWindow(QWidget*)': 
  2. ..\bitai\mainwindow.cpp:22: warning: ISO C++ says that these are ambiguous, even though the worst conversion for the first is better than the worst conversion for the second: 
  3. c:\Qt\2010.04\qt\include/QtCore/../../src/corelib/tools/qbytearray.h:456: note: candidate 1: bool QByteRef::operator==(char) const 
  4. ..\bitai\mainwindow.cpp:22: note: candidate 2: operator==(int, int) <built-in> 
  5. ..\bitai\mainwindow.cpp:23: warning: ISO C++ says that these are ambiguous, even though the worst conversion for the first is better than the worst conversion for the second: 
  6. c:\Qt\2010.04\qt\include/QtCore/../../src/corelib/tools/qbytearray.h:456: note: candidate 1: bool QByteRef::operator==(char) const 
  7. ..\bitai\mainwindow.cpp:23: note: candidate 2: operator==(int, int) <built-in> 
  8. ..\bitai\mainwindow.cpp:24: warning: ISO C++ says that these are ambiguous, even though the worst conversion for the first is better than the worst conversion for the second: 
  9. c:\Qt\2010.04\qt\include/QtCore/../../src/corelib/tools/qbytearray.h:456: note: candidate 1: bool QByteRef::operator==(char) const 
  10. ..\bitai\mainwindow.cpp:24: note: candidate 2: operator==(int, int) <built-in> 
  11. ..\bitai\mainwindow.cpp:25: warning: ISO C++ says that these are ambiguous, even though the worst conversion for the first is better than the worst conversion for the second: 
  12. c:\Qt\2010.04\qt\include/QtCore/../../src/corelib/tools/qbytearray.h:456: note: candidate 1: bool QByteRef::operator==(char) const 
  13. ..\bitai\mainwindow.cpp:25: note: candidate 2: operator==(int, int) <built-in> 
  14. ..\bitai\mainwindow.cpp:26: warning: ISO C++ says that these are ambiguous, even though the worst conversion for the first is better than the worst conversion for the second: 
  15. c:\Qt\2010.04\qt\include/QtCore/../../src/corelib/tools/qbytearray.h:456: note: candidate 1: bool QByteRef::operator==(char) const 
  16. ..\bitai\mainwindow.cpp:26: note: candidate 2: operator==(int, int) <built-in> 
  17. ..\bitai\mainwindow.cpp:27: warning: ISO C++ says that these are ambiguous, even though the worst conversion for the first is better than the worst conversion for the second: 
  18. c:\Qt\2010.04\qt\include/QtCore/../../src/corelib/tools/qbytearray.h:456: note: candidate 1: bool QByteRef::operator==(char) const 
  19. ..\bitai\mainwindow.cpp:27: note: candidate 2: operator==(int, int) <built-in> 
  20. ..\bitai\mainwindow.cpp:28: warning: ISO C++ says that these are ambiguous, even though the worst conversion for the first is better than the worst conversion for the second: 
  21. c:\Qt\2010.04\qt\include/QtCore/../../src/corelib/tools/qbytearray.h:456: note: candidate 1: bool QByteRef::operator==(char) const 
  22. ..\bitai\mainwindow.cpp:28: note: candidate 2: operator==(int, int) <built-in> 
  23. ..\bitai\mainwindow.cpp:29: warning: ISO C++ says that these are ambiguous, even though the worst conversion for the first is better than the worst conversion for the second: 
  24. c:\Qt\2010.04\qt\include/QtCore/../../src/corelib/tools/qbytearray.h:456: note: candidate 1: bool QByteRef::operator==(char) const 
  25. ..\bitai\mainwindow.cpp:29: note: candidate 2: operator==(int, int) <built-in>
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