Using Quick Sort in C to sort in reverse direction (descending)?

Question

To sort I call qsort(myArray,100,sizeof(int), comp)

int comp(const int * a, const int * b)
if(a==b)
{
    return 0;
}
else
{
    if(a

        

Answer 1

You need to compare the values, not their addresses. Try

int comp(const int * a, const int * b)
{
 return *a - *b;
}

To reverse the ordering, use

int comp(const int * a, const int * b)
{
 return *b - *a;
}