What is: Orphan format arguments: args[0..1]

[anonymous via Digitalmars-d-learn]

On Sunday, 15 March 2015 at 18:46:52 UTC, Charles Hixson wrote:
> What is:  Orphan format arguments: args[0..1]
> It appears to come from within unittest at the line:
> string    s    =    "{0}".format(cast(int)d2[i]);

It means you gave `format` more arguments than placeholders. 
`format` uses C style % placeholders, not the brace syntax like 
C#(?).

So make that:
string    s    =    "%s".format(cast(int)d2[i]);

By the way, I don't see a need for the cast.