How to delete elements from the middle of a pointer array using free() or any other method?

Question

I have created a pointer array using calloc and I want to delete elements starting from the middle of the array.What are the ways in which this can be done?

Answer 1

You can only pass to free a pointer that was returned from malloc, realloc, or calloc.

If you want to remove a value from the middle of any array (dynamically allocated or otherwise), you need to move each value above it down by one element. You'll also want to keep track of how many "active" elements the array contains in some way.