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IAR Embedded Workbench for RH850 3.20.x

MISRAC++2008-5-0-16_a

In this section:
Synopsis

(Required) A pointer operand and any pointer resulting from pointer arithmetic using that operand shall both address elements of the same array.

Enabled by default

Yes

Severity/Certainty

Medium/High

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Full description

Pointer arithmetic applied to a pointer that references a stack address was found. This check is identical to PTR-arith-stack, MISRAC2004-17.1_b.

Coding standards
CWE 120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

MISRA C:2004 17.1

(Required) Pointer arithmetic shall only be applied to pointers that address an array or array element.

Code examples

The following code example fails the check and will give a warning:

void example(void) {
  int i;
  int *p = &i;
  p++;
  *p = 0;
}

The following code example passes the check and will not give a warning about this issue:

void example(void) {
  int i;
  int *p = &i;
  *p = 0;
}