[previous] 2840 [next] Constant: Dereference of an invalid pointer value.
Arrays

An element outside the bounds of an array is being accessed - either for reading or writing. Behavior will be undefined.

For example: 


/*PRQA S 488,2017,3120,3132,3199,3203,3408,3447 ++*/

extern int a[10];

extern int foo(void)
{
    int r;

    r = a[10];             /* 2840 */

    a[10] = 0;             /* 2840 */

    *(a + 10) = 0;         /* 2840 */

    return r;
}

Certain standard library functions specify that the char array destination argument shall be large enough to store the resulting characters including the null terminator.

This message will also be generated for the following functions where a string literal argument (M) that is too large for the destination array:
function M parameter number
snprintf 3
snprintf_s 3
sprintf 2
strcat 2
strcpy 2
strftime 3
strncat 2
strncpy 2

See also:

QA·C Source Code Analyser 8.1.2
© 2013 Programming Research.
www.programmingresearch.com 		Personality Groups | Glossary | Message Index Contents