QA·C Help - 3936

	3936	short value returned from unsigned short %s().

Arithmetic type - Implicit conversions

An expression of type signed short is being implicitly converted to type unsigned short. A conversion of this type is dangerous; the result of converting any negative value will probably be meaningless.

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(unsigned short up);

extern unsigned short foo(signed short s)
{
    unsigned short u = s;       /* Message 3736 - Initialization */

    u = s;                      /* Message 3736 - Assignment */

    ef(s);                      /* Message 3736 - Function argument */

    return s;                   /* Message 3936 - Function return */
}

No MISRA C:2012 Rules applicable to message 3936

See also:

3736 Implicit conversion: short to unsigned short.

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