C#•2y ago

How to replace elements in an array of type T?

I have an Array2D<T> class that can take integer, reference types, etc. They are stored in this:

 private T[] m_array = new T[width * height];

 private T[] m_array = new T[width * height];

I have a method here that should replace elements.

  void Replace(T from, T to) 
  {
  }

  void Replace(T from, T to) 
  {
  }

I can't find any existing replace method. Any suggestions?

8 Replies

uhm wouldn't replace take also a index as argument? also by replace you mean assigning?

This would change any element that matched from and replace it with to.

occluder•2y ago

Maybe m_array[Array.IndexOf(m_array, from)] = to;?

yeah, that but with a loop

occluder•2y ago

void Replace(T from, T to) 
{
  int i;
  while ((i = Array.IndexOf(m_array, from)) != -1)
  {
    m_array[i] = to;
  }
}

void Replace(T from, T to) 
{
  int i;
  while ((i = Array.IndexOf(m_array, from)) != -1)
  {
    m_array[i] = to;
  }
}

like that maybe

It works, thanks!

from is kind of a reserved word just remember it

It's a contextual keyword.