How would you get an array of Unicode code points from a .NET String?

Question

I have a list of character range restrictions that I need to check a string against, but the char type in .NET is UTF-16 and therefore some characters become wa

Answer 1

Doesn't seem like it should be much more complicated than this:

public static IEnumerable Utf32CodePoints( this IEnumerable s )
{
  bool      useBigEndian = !BitConverter.IsLittleEndian;
  Encoding  utf32        = new UTF32Encoding( useBigEndian , false , true ) ;
  byte[]    octets       = utf32.GetBytes( s ) ;

  for ( int i = 0 ; i < octets.Length ; i+=4 )
  {
    int codePoint = BitConverter.ToInt32(octets,i);
    yield return codePoint;
  }

}