[previous] 4139 [next] Address of local static object exported in function return value.
Pointers

The address of a local object with static storage duration is being exported to a wider scope through the function return expression.

The object can therefore no longer be considered 'private' to this function. Is this intended ? Perhaps it should be declared at file scope with linkage ?

For example: 


/*PRQA S 506,2017,3122,3223,3227,3408,3447,3625,3674 ++*/

extern char *pc;

extern void f1(void)
{
    static char buf[] = "Diagnostic message:";

    pc = &buf[0];                                       /* Message 3216 */
}

extern void f2(int **appi)
{
    static int bi = 1;

    *appi = &bi;                                        /* Message 3231 */
}

extern int * f3(void)
{
    static int a;

    return &a;                                          /* Message 4139 */
}

See also:

QA·C Source Code Analyser 8.1.2
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