C Void Array Traversal

I have a question about coding styles when using void pointers.

This code is modified from code geeks

#include<stdio.h>
int main()
{
    int a[2] = {1, 2};
    void *ptr = &a;
    for(int i=0; i<2; i++) {
        printf("%d\n", *(int *)ptr+i);
    }
    return 0;
}

I am using a generic circular buffer in my project. This buffer has a void pointer to a static buffer which is passed in during initialization. I want to traverse and print the data in the circular buffer. I was unsure how to print the contents until I found the code above.

I have two questions:

1. Is this an appropriate well accepted way to traverse my data? Will tools such as PC-Lint throw a warning with good reason?
2. Is there a better way to traverse this data?

Edit: Thanks to Lev M. I have updated my code to properly traverse the data using the size of the data type. The circular buffer is meant to be generic meaning we pass in a buffer and a data type size.

The updated test code is as follows.

#include<stdio.h>
int main()
{
    int a[2] = {2, 1};
    void *ptr = &a;
    for(int i=0; i<2; i++) {
        printf("%d\n", *(int *)ptr);
        ptr = ptr + sizeof(int);
    }

    return 0;
}