3931			signed char value returned from double %s().
	Arithmetic type - Implicit conversions

• initializations
• assignment operations
• balancing 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(double f);

extern double foo(signed char n)
{
    double f = n;               /* Message 3731 - Initialization */

    f = n;                      /* Message 3731 - Assignment */

    f = f + n;                  /* Message 3731 - Balancing */

    ef(n);                      /* Message 3731 - Function argument */

    return n;                   /* Message 3931 - Function return */
}

No MISRA C:2012 Rules applicable to message 3931

See also:

• 3731 Implicit conversion: signed char to double.