Rule 10.6: \"u\" Suffix to all unsigned constants

[misra-c]

MISRA-C Steering Meeting 7th November 2006

You are correct, this is an error. The line should have read

Code:

index = index + 5U;

See highlighted corrections to the example 17.4. Changes denoted by /*#*/

Code:

void my_fn(uint8_t * p1, uint8_t p2[])
{
   uint8_t index = 0U; /*#*/
   uint8_t * p3;
   uint8_t * p4;

   *p1 = 0U; /*#*/
   p1 ++;       /* not compliant – pointer increment               */
   p1 = p1 + 5; /* not compliant – pointer increment               */
   p1[5] = 0U; /*#*/  /* not compliant – p1 was not declared as an array */
   p3 = &p1[5]; /* not compliant – p1 was not declared as an array */
   p2[0] = 0U; /*#*/
   index ++;
   index = index + 5U; /*#*/
   p2[index] = 0U; /*#*//* compliant     */
   p4 = &p2[5];   /* compliant     */
}
uint8_t a1[16];
uint8_t a2[16];

my_fn(a1, a2);

my_fn(&a1[4], &a2[4]);

uint8_t a[10];
uint8_t * p;
p = a;
*(p+5) = 0U; /*#*//* not compliant */
p[5] = 0U;   /*#*//* compliant     */