[boost] Re: [Boost optional] CVS regression fails 3 tests on VC6

From: Roland Richter (roland_at_[hidden])
Date: 2003-10-27 01:25:41

Fernando,

  I checked the various CVS revisions of optional,
  using MS VC++ 7.0, aka Visual Studio.NET 2002.

  Revisions 1.7 up to and including 1.11 are ok.

  1.12 introduces two errors:

e:\lib\boost\boost\optional.hpp(129): error C2248: 
'boost::optional_detail::types_when_isnt_ref<T>::argument_type' : cannot access 
private typedef declared in class 'boost::optional_detail::types_when_isnt_ref<T>'
  ... blablabla ...

and

e:\project\xyz\Logger.cpp(53): error C2558: class 'boost::optional<T>' : no copy 
constructor available or copy constructor is declared 'explicit'
         with
         [
             T=_STL::string
         ]

  The former was fixed with 1.13 (yep, it says so in the log).
  The later aslo occurs in 1.13 and 1.14.

  I'm afraid this won't tell you much, since 1.12 was a
  big change. Anyway, hope it helps.

- Roland