Re: [Cppcms-users] date_time and as::time_zone question

[Pavel K. <un...@fu...>]

hi,

it's locale problem. set std::locale::global() for newly created streams and 
use imbue() to affect std::cout.

int main() {
   std::locale::global( booster::locale::generator().generate( "" ) );

   std::string tz = "Canada/Eastern";
   booster::locale::date_time dt;

   std::istringstream is("1999-04-22 12:13:14");
   is >> booster::locale::as::ftime( "%Y-%m-%d %H:%M:%S" ) >> dt;

   std::cout.imbue( std::locale() );

   std::cout << booster::locale::as::time_zone(tz) << 
booster::locale::as::ftime( "%Y-%m-%d %H:%M:%S" ) << dt << std::endl;
}

pavel.


On Friday 18 March 2011, Heiko Weber wrote:
> Hi Artyom,
> 
> first, thanks for the work, I am really impressed about what I've
> discovered so far !
> 
> I am just trying to figure out what parts of "boost" are still accessable
> with booster ... so, maybe the following is just not working by intention?
> I hope you can give me some enlightment ;)
> 
> This one results in an exception:
> 
> terminate called after throwing an instance of 'std::bad_cast'
>  what():  std::bad_cast
> Abort trap
> 
> ---
> 
> #include <booster/locale/date_time.h>
> #include <booster/locale/formatting.h>
> #include <booster/locale/generator.h>
> #include <booster/locale/localization_backend.h>
> #include <iostream>
> #include <sstream>
> 
> int main() {
> 
>    booster::locale::localization_backend_manager my =
> booster::locale::localization_backend_manager::global(); // Get global
> backend
> 
>    my.select("icu");
> 
>    std::string tz = "Canada/Eastern";
>    booster::locale::date_time dt;
> 
>    std::istringstream is("1999-04-22 12:13:14");
>    is >> booster::locale::as::ftime( "%Y-%m-%d %H:%M:%S" ) >> dt;
>    std::cout << booster::locale::as::time_zone(tz) <<
> booster::locale::as::ftime( "%Y-%m-%d %H:%M:%S" ) << dt << std::endl; }
> 
> I also also tried it without the backend select, but same result. The throw
> happens at the constructor of dt, shouldn't it work without setting up a
> calendar/locale first ?
> 
> Thanks in advance.
> Heiko