X-Recipient:	archive-cygwin AT delorie DOT com
X-SWARE-Spam-Status:	No, hits=-2.5 required=5.0 tests=AWL,BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,RCVD_IN_DNSWL_LOW
X-Spam-Check-By:	sourceware.org
Message-ID:	<4F33AA60.6080704@gmail.com>
Date:	Thu, 09 Feb 2012 12:13:36 +0100
From:	marco atzeri <marco DOT atzeri AT gmail DOT com>
User-Agent:	Mozilla/5.0 (Windows NT 6.1; WOW64; rv:10.0) Gecko/20120129 Thunderbird/10.0
MIME-Version:	1.0
To:	cygwin AT cygwin DOT com
Subject:	how to set locale with C++
X-IsSubscribed:	yes
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id:	<cygwin.cygwin.com>
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com

--------------040306000207050009090105
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit

Attached a small example taken from Bruce Eckel Thinking in C++

On cygwin both this call

   cout.imbue(locale("en_US.UTF-8"));

   cout.imbue(locale("fr_FR.UTF-8"));

raise exception

"terminate called after throwing an instance of 'std::runtime_error'
   what():  locale::facet::_S_create_c_locale name not valid
Aborted (core dumped)"

I could understand eventually the second one, but "English (US)" is the 
current windows locale so I expected that at least "en_US.UTF-8" is 
accepted.

What I am missing ?

Regards
Marco

--------------040306000207050009090105
Content-Type: text/plain;
 name="Locale.cpp"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="Locale.cpp"

//: C04:Locale.cpp {-g++}{-bor}{-edg} {RunByHand}
// Illustrates effects of locales.
#include <iostream>
#include <locale>
using namespace std;
 
int main() {
  locale def;
  cout << def.name() << endl;
  locale current = cout.getloc();
  cout << current.name() << endl;
  float val = 1234.56;
  cout << val << endl;

  // Change to US
  cout.imbue(locale("en_US.UTF-8"));
  current = cout.getloc();
  cout << current.name() << endl;
  cout << val << endl;

  // Change to French/France
  cout.imbue(locale("fr_FR.UTF-8"));
  current = cout.getloc();
  cout << current.name() << endl;
  cout << val << endl;

 
  cout << "Enter the literal 7890,12: ";
  cin.imbue(cout.getloc());
  cin >> val;
  cout << val << endl;
  cout.imbue(def);
  cout << val << endl;
} ///:~



--------------040306000207050009090105
Content-Type: text/plain; charset=us-ascii

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
--------------040306000207050009090105--

- Raw text -