[Bug c++/33852] New: incorrect text formating in "std::cout" with UTF-8

[Bug c++/33852] New: incorrect text formating in "std::cout" with UTF-8

[siegerstein at pochta dot ru]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 2376 bytes --]

Here is incorrect text formating with using cout() with setw() in UNICODE
(UTF-8)
Two text: first in English - correct formating, second - russian in UTF-8 -
incorrect.

#include <iostream>
#include <iomanip>

int main() {
        std::cout.setf(std::ios::left);
        std::cout.fill('_');

        std::cout << std::setw(15) << "Mixer" << std::setw(15) << "Device" <<
std::setw(15) << "Recording" <<
                        std::setw(15)   << "Active" << std::setw(15) <<
"Stereo" << std::setw(15) << "Current" << std::endl;
        std::cout << std::setw(15) << "Channel" << std::setw(15) << 
"Available" << std::setw(15) << "Source" <<
                        std::setw(15)   << "Source" << std::setw(15) <<
"Device" << std::setw(15) << "Level" << std::endl;

std::cout << std::endl;

// Russian text in UTF-8
// Not correct formating text....

        std::cout << std::setw(15) << "Êàíàë" << std::setw(15) << "Äîñòóïíîñòü"
<< std::setw(15) << "Èñòî÷íèê" <<
                        std::setw(15)   << "Àêòèâíîñòü" << std::setw(15) <<
"Ñòåðåî" << std::setw(15) << "Òåêóùèé" << std::endl;
        std::cout << std::setw(15) << "ìèêøåðà" << std::setw(15) << 
"óñòðîéñòâà" << std::setw(15) << "çàïèñè" <<
                        std::setw(15)   << "èñòî÷íèêà" << std::setw(15) <<
"óñòðîéñòâî" << std::setw(15) << "óðîâåíü" << std::endl;

        return 0;
}

$ g++-4.2.2 bug.cpp -o bug

RESULT:

Mixer__________Device_________Recording______Active_________Stereo_________Current________
Channel________Available______Source_________Source_________Device_________Level__________

Êàíàë_____ÄîñòóïíîñòüÈñòî÷íèêÀêòèâíîñòüÑòåðåî___Òåêóùèé_
ìèêøåðà_óñòðîéñòâàçàïèñè___èñòî÷íèêàóñòðîéñòâîóðîâåíü_


-- 
           Summary: incorrect text formating in "std::cout" with UTF-8
           Product: gcc
           Version: 4.2.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: siegerstein at pochta dot ru
 GCC build triplet: i686-pc-linux
  GCC host triplet: i686-pc-linux
GCC target triplet: i686-pc-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33852

[Bug libstdc++/33852] incorrect text formating in "std::cout" with UTF-8

[siegerstein at pochta dot ru]

------- Comment #1 from siegerstein at pochta dot ru  2007-10-27 20:26 -------
Can any body comment this bug?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33852

[Bug libstdc++/33852] incorrect text formating in "std::cout" with UTF-8

[siegerstein at pochta dot ru]

------- Comment #2 from siegerstein at pochta dot ru  2007-10-27 20:27 -------
Created an attachment (id=14416)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=14416&action=view)
bug.cpp


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33852

[Bug libstdc++/33852] incorrect text formating in "std::cout" with UTF-8

[pcarlini at suse dot de]

------- Comment #3 from pcarlini at suse dot de  2007-10-28 09:53 -------
Cout & co by default aren't converting streams, they are synced char-by-char
with stdio, therefore cannot be expected to work with UTF-8 in any meaningful
way. If you call sync_with_stdio(false) at the beginning of your program and
then imbue the proper locale, things will work with any encoding >= 0 locale,
UTF-8 or other, if you make sure to use wchar_t as your internal representation
(we do not provide char <-> char codecvts).

Note that a lot about locale and streams is implementation defined in the
current standard and we consider our design choices (sync with stdio by
default, required in the standard, then a converting stream if syncing is
disabled) only a very good compromise.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33852

[Bug libstdc++/33852] incorrect text formating in "std::cout" with UTF-8

[manu at gcc dot gnu dot org]

------- Comment #4 from manu at gcc dot gnu dot org  2010-02-21 01:05 -------
I understand that this is  not a bug, so closing. Please Paolo, reopen if I am
mistaken.


-- 

manu at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |manu at gcc dot gnu dot org
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33852

[Bug libstdc++/33852] incorrect text formating in "std::cout" with UTF-8

[paolo dot carlini at oracle dot com]

------- Comment #5 from paolo dot carlini at oracle dot com  2010-02-21 01:31 -------
Reopen...


-- 

paolo dot carlini at oracle dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |UNCONFIRMED
         Resolution|INVALID                     |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33852

[Bug libstdc++/33852] incorrect text formating in "std::cout" with UTF-8

[paolo dot carlini at oracle dot com]

------- Comment #6 from paolo dot carlini at oracle dot com  2010-02-21 01:31 -------


*** This bug has been marked as a duplicate of 35353 ***


-- 

paolo dot carlini at oracle dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |DUPLICATE


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33852