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Arithmetic type - Implicit conversions

An expression of type double is the return expression in a function that returns a value of type unsigned long long. An implicit conversion will occur which may result in a loss of precision as the fractional element of the value is discarded. If the integral element of the value cannot be represented in type unsigned long long, either because it is too large or because it is negative, the result will be meaningless.

For example: 


/*PRQA S 2017,3408,3447,3602 ++*/
/**************************
 * OPTIONS -ex LONGLONG
 **************************/

extern double v;

extern unsigned long long foo ( void )
{
    /* ... */
    return(v);                          /* Message 4079 */
}

See also:

QA·C Source Code Analyser 8.1.2
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