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

[adah at netstd dot com]

------- Additional Comments From adah at netstd dot com  2005-08-10 03:34 -------
(In reply to comment #73)
> > encountered the problem before.  Not to say understand the problem.  As the 
> > very beginning, adding a message like `In instantiation of 
std::distance...' 
> > will be helpful.
> But it is not instantiating std::distance just yet, it is looking at the 
return values/parameter types.

But it is about to instantiate std::distance, right?  Even if not right, my 
point is still that one should notified of the existence of std::distance 
somehow.

> ICC produces about the same error message:
> /opt/intel/include/c++/xutility(290): error: class "std::vector<double, 
std::allocator<double>>" has no 
> member "iterator_category"
>         typedef typename _Iter::iterator_category iterator_category;
>                                 ^
>           detected during instantiation of class "std::iterator_traits<_Iter> 
[with _Iter=std::vector<double, 
> std::allocator<double>>]" at line 12 of "t.cc"
> compilation aborted for t.cc (code 2)

Do you think this message is helpful for a user that encounters this problem?

That is just one place to show that GCC can do better than commercial compilers.

Yongwei


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15910