Cppcheck (http://cppcheck.sourceforge.net) output of the current master:

• Path selected: MITK/master/Modules
• Number of files scanned: 2153
• Statistics
  • Errors: 77
  • Warnings: 394
  • Style warnings: 881
  • Portability warnings: 5
  • Performance warnings: 342
  • Information messages: 132

Try to fix some issues.