QA·C Help - 3712

	3712	Implicit conversion: unsigned char to signed char.

Arithmetic type - Implicit conversions

An expression of type unsigned char is being implicitly converted to type signed char. A conversion of this type is dangerous because the value may not be representable in this signed type.

Implicit type conversions of this nature can occur in the context of:

initializations
assignment operations
the passing of a function argument
the return of a value from a function


/*PRQA S 2017,3197,3199,3203,3227,3408,3447,3602,3625 ++*/

extern void ef(signed char f);

extern signed char foo(unsigned char n)
{
    signed char f = n;          /* Message 3712 - Initialization */

    f = n;                      /* Message 3712 - Assignment */

    ef(n);                      /* Message 3712 - Function argument */

    return n;                   /* Message 3912 - Function return */
}