QA·C Help - 3920

	3920	unsigned char value returned from double %s().

Arithmetic type - Implicit conversions

An expression of integral type (unsigned char) is being implicitly converted to a floating type (double). Is this intended ?

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

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(unsigned char n)
{
    double f = n;               /* Message 3720 - Initialization */

    f = n;                      /* Message 3720 - Assignment */

    f = f + n;                  /* Message 3720 - Balancing */

    ef(n);                      /* Message 3720 - Function argument */

    return n;                   /* Message 3920 - Function return */
}

No MISRA C:2012 Rules applicable to message 3920

See also:

3720 Implicit conversion: unsigned char to double.

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