Typecasting from signed to unsigned and vis-verse

[deepabagalkot]

Hi,

Please can anybody help me to understand whether Misra C rules support signed to unsigned and vis-verse data typecasting?

If there is requirement to do some manipulation on signed and unsigned values, then i think it is ok to type-caste. But the requirement given to us says that whenever there is typecasting happening from signed to unsigned and vis-verse, then such incident should be failed.

Thanks in advance,
Deepa