Re: [Dev-C++] Resize Arrays

[<ri...@te...>]

Well if you don´t want to use STL you have two options:

1) Build your own vector class which can resize an array in run time.
   That´s good for learning, but choosing this option means more writing 
more code and since you already have the vector class in STL I think 
it´s no point in it.

2) Write a function for resize an array:
     Good option if you are using "old-school" arrays. A generic 
function could be:
     
template <class T>
T* resize(& T* source_array,  const int &source_array_size, const int 
&new_n_elements, const T &inital_value =  (T) 0 ){
   //Allocate memory for new array;
    T* temp = new T [new_n_elements];
    //Copy the "old" array direction
    T* temp" = source_array;

    //Copy the source array   
    for(int i=0; (i < source_array_elements) && (i < new_n_elements); i++)
        temp[i]=source_array[i];
  
     //Init new values.
    for (int i = source_array_size; i < new_n_elements; i++)
        temp[i] =  initial_value;
   
    source_array = temp;
    delete [] temp;
    return source_array;
}

And, if you have an sprite array which you want to resize:

int size_array = 10;
SPRITE array[size];
resize (array[], size, size+1);

And last, one advice: don´t resize the array for just one element, it 
would be better in little increments because of function overhead
A value between 5 - 10  is a good value for your SPRITE class IMHO.

Greetings.