QA·C Help - 3225

	3225	Address of automatic object exported using a function parameter.

Pointers		REFERENCE - ISO:C90-6.1.2.4 Storage Durations of Objects

The address of an automatic object is being returned through a function parameter. This is dangerous. On return from this function, the local object will go out of scope and the value obtained by dereferencing the pointer will be undefined. Perhaps this object needs to be declared with static storage duration ?

For example:


/*PRQA S 506,2017,3227,3408,3447 ++*/

void foo(int **appi)
{
    int  bi = 1;

    *appi = &bi;               /* Message 3225 */

    return;
}

See also:

3217 Address of automatic object exported to a pointer with linkage or wider scope.
3230 Address of automatic object assigned to local pointer with static storage duration.
4140 Address of automatic object exported in function return value.

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