V2 string

[Serg Kovrov]

Walter Bright wrote:
> James Dennett wrote:
>> I've found many times when the difference between an empty
>> string and no string was important; they generally have
>> nothing to do with extending at all.  I'd be interested to
>> know why you assert that no such cases exist.
> 
> I'd like to know of such cases.

I used to this pattern:
void foo(char[] bar=null)
{
     if (bar is null)
         m_bar = "default_value";
     else
         m_bar = bar; // even if it's empty
}

often as one-liner:
m_bar = (bar is null) ? "default_value" : bar;

This is most used one (at least by me), but of course there are more.


-- serg.