[Bug libstdc++/15910] can't compile self defined void distance(std::vector<T>, std::vector<T>)

[Andrew Pinski]

> This is reasonable.  That was why I thought it was not necessary to `fix' this 
> bug after some discussions.  I just thought it was still a bug, and some 
> measures need to be taken to warn the user about this problem.  It might be of 
> low priority, but simply marking it as `INVALID' just covers this problem.  
> More people might discover this bug again and report it again, though they 
> might not be as _____ (fill in adjectives that you like) as I am.

Even documentioning what the standard say in the non bug section of bug reporting
web page, does not help people to read the docs.  There is no way really to fix
this.  Look at the sequence point docs in bug reporting web page and then look at
all the dupicate bugs.

-- Pinski