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c++pointersmisra

MISRA C++-2008 Rule 5-0-15 - Array indexing shall be the only form of pointer arithmetic

I need someone who has more experience with MISRA to help me to solve this. I have the following code:

byte* buf = new(std::nothrow) byte[bufferSize];

.....
for (uint32_t i = 0; i < bufferSize; i+=4)
{

..............
                        {
buf[ i+0 ] = b;
buf[ i+1 ] = g;
buf[ i+2 ] = r;

(1) Event misra_violation:  [Required] MISRA C++-2008 Rule 5-0-15 violation: Array indexing shall be the only form of pointer arithmetic.
buf[ i+3 ] = a;

}

MISRA Rule 5-0-15 doesn't allow also ptr++ or ptr--. What should be the approach here to increment/decrement and assign values using pointers created by new?

My MISRA checker is Coverity 7.0.3.3.

Solution

  • There is no problem with your code. It uses array indexing as required. Your static analyser is broken.