itoa() and utoa() have bad results
It is defined in the AAPCS (Arm Architecture Procedure Call Standard) section 7.1.1
http://infocenter.arm.com/help/topic/com.arm.doc.ihi0042f/IHI0042F_aapcs.pdf
these types are define at compile time of gcc compiler, i dont think there is an option to modify it
Best Regards,
Roy,
AC6