How to remove something from a custom vector? C++

Question

I am currently making a vector class in C++ and am just trying some stuff out. I am not sure if this can be done without causing a memory leak or leaving memory behind and not deleting it properly. I have commented the lines of code that I have questions for. Any help will be appreciated, thank you in advance!

void remove(unsigned int toRemove) 
{
    T* tmp = new T[maxsize];    // T is the datatype of the vector
    int x = 0;
    for (int i = 0; i < size; i++)
    {
        if (i != toRemove)
        {
            tmp[x] = array[i];  // does this line cause memory leak ?
        }
        else 
        {
            x--;
        }
        x++;
    }

    delete[] array;     // is there anything else I need to delete?
    array = tmp;
    size--;
}

Answer 1

Instead of realocating I changed it to do this and it works better and is better optimised.

void remove(unsigned int toRemove) 
{
    unsigned int x = 0;
    for (unsigned int i = 0; i < size; i++)
    {
        if (i != toRemove)
        {
            array[x] = array[i]; // shifts the elements backwards 
        }
        else 
        {
            x--;
        }
        x++;
    }
    size--;
}