Re: [boost] [locale] Review

Subject: Re: [boost] [locale] Review
From: Artyom (artyomtnk_at_[hidden])
Date: 2011-04-18 17:19:03

> Gevorg wrote:
> > 
> > Calling std::locale::global(some_locale)
> > calls C   function 
> > 
> >    setlocale(LC_ALL,some_locale.name());
> > 
> > So even  if you  can fix C++ code you can't do it
> > for C libraries you may  use.
> > 
> > Also  99.9% of C++ developers unaware of this issue  and 
> > almost nobody imbues  std::locale::classic() because
> >  they just not aware of the  problem.
> 
> 
> Valid points, yet none of  these is a design issue of the C++ standard library 

> per se. You can write  the example you mentioned earlier in this thread in a 
> correct and reasonable  way in C++, unlike in C. But developers need to be 
> educated how, and I think  this library can help with that by increasing the 
> general awareness of  localization-related issues in the C++  community.
> 

There are two problems:

1. Every medium size C++ project uses C libraries. And they 
   will always be there.
2. When C++ locale's system is quite broken in its current state
   and useless for most of users then you can't expect them
   to be aware of such issues.

The other problem is that I hear complains about
it too frequently:

- libdbi mailing list is full of it and there is open bug
- SOCI has issues 
- The problem with lexical cast rise once in a while in 
  Boost's list.

No, if something causes bugs too frequently then there
is something wrong with the concept.

Artyom