[Xupicor]

In NetBeans go to Tools->Options->C/C++ and tell us what compiler you're using (Tools Collection->C++ Compiler). Also post its version (for g++ it's g++ --version) both on Windows and Linux. Are these different versions? What compiler flags did you use when compiling?

[JackOfAllTrades]

Because the arrays are global, I believe they should by the standard be initialized to 0 by default. I never rely on this, and always initialize character arrays as follows:

char myArray[32] = { 0 };

which ensures all elements contain the null character.