C
C#•14mo ago
triplemocha

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
boiled goose
boiled goose•14mo ago
uhm wouldn't replace take also a index as argument? also by replace you mean assigning?
triplemocha
triplemocha•14mo ago
This would change any element that matched from and replace it with to.
occluder
occluder•14mo ago
Maybe m_array[Array.IndexOf(m_array, from)] = to;?
boiled goose
boiled goose•14mo ago
yeah, that but with a loop
occluder
occluder•14mo 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
triplemocha
triplemocha•14mo ago
It works, thanks!
boiled goose
boiled goose•14mo ago
from is kind of a reserved word just remember it
triplemocha
triplemocha•14mo ago
It's a contextual keyword.
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