how to delete array index in c code example

Example 1: how to delete element from array c

for (int i =  pos; i < size; i++)
{
    arr[i-1]= arr[i];
        
}

Example 2: c remove element from array

void remove_element(array_type *array, int index, int array_length)
{
   int i;
   for(i = index; i < array_length - 1; i++) array[i] = array[i + 1];
}