QA·C Help - 4070

	4070	unsigned long long value returned from long %s().

Arithmetic type - Implicit conversions

An expression of type unsigned long long is being implicitly converted to type signed long. 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 ++*/
/****************************
 * OPTIONS: -ex LONGLONG
 ****************************/

extern void ef(signed long f);

extern signed long foo(unsigned long long n)
{
    signed long f = n;          /* Message 3870 - Initialization */

    f = n;                      /* Message 3870 - Assignment */

    ef(n);                      /* Message 3870 - Function argument */

    return n;                   /* Message 4070 - Function return */
}