[Bug libstdc++/12988] Serious problems with 22.2.2.2.2, Stage2, both floats and ints

[Bug libstdc++/12988] Serious problems with 22.2.2.2.2, Stage2, both floats and ints

[paolo at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2003-11-10 08:13:25
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12988

[Bug libstdc++/12988] New: Serious problems with 22.2.2.2.2, Stage2, both floats and ints

[paolo at gcc dot gnu dot org]

Consider this small testcase from Martin Sebor:

#include <iostream>
#include <locale>

struct Ctype: std::ctype<char>
{
  char do_widen(char c) const {
    return 'A' + c % 26;
  }
};

int main()
{
  std::locale loc(std::locale::classic(), new Ctype);
  loc = std::cout.imbue(loc);
  std::cout << 123 << '\n';  // (double)123
  std::cout.imbue(loc);
}

It doesn't print ABC as expected but instead 123, both for integer
and float types due to serious problems in _M_insert_float and
_M_insert_int:

1- In _M_insert_int Stage2 is *completely* missing!
2- In _M_insert_float Stage2 uses the range version of widen instead
   of the single char version, prescribed by the standard.

Sigh!

-- 
           Summary: Serious problems with 22.2.2.2.2, Stage2, both floats
                    and ints
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: libstdc++
        AssignedTo: paolo at gcc dot gnu dot org
        ReportedBy: paolo at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: Any


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12988

[Bug libstdc++/12988] Serious problems with 22.2.2.2.2, Stage2, both floats and ints

[paolo at gcc dot gnu dot org]

------- Additional Comments From paolo at gcc dot gnu dot org  2003-11-10 09:16 -------
About 1- above, only the widen part is missing, not the grouping: this report is
all about widen.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12988

[Bug libstdc++/12988] Serious problems with 22.2.2.2.2, Stage2, both floats and ints

[paolo at gcc dot gnu dot org]

------- Additional Comments From paolo at gcc dot gnu dot org  2003-11-10 10:18 -------
... and, well, the expected output is XYZ *not* ABC, sorry.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12988

[Bug libstdc++/12988] Serious problems with 22.2.2.2.2, Stage2, both floats and ints

[paolo at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2003-11-10 08:13:25         |2003-11-12 14:36:05
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12988

[Bug libstdc++/12988] Serious problems with 22.2.2.2.2, Stage2, both floats and ints

[paolo at gcc dot gnu dot org]

------- Additional Comments From paolo at gcc dot gnu dot org  2003-11-13 09:39 -------
The analysis in point 1- is wrong: see

  http://gcc.gnu.org/ml/libstdc++/2003-11/msg00106.html

for something more meaningful!
Paolo.



-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|paolo at gcc dot gnu dot org|unassigned at gcc dot gnu
                   |                            |dot org
             Status|ASSIGNED                    |NEW


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12988

[Bug libstdc++/12988] Serious problems with 22.2.2.2.2, Stage2, both floats and ints

[paolo at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |paolo at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12988

[Bug libstdc++/12988] Serious problems with 22.2.2.2.2, Stage2, both floats and ints

[paolo at gcc dot gnu dot org]

------- Additional Comments From paolo at gcc dot gnu dot org  2003-11-17 08:44 -------
So... the real issue is just that the testcase is not complete. But the standard
needs a clarification here! Suspended for now, and added a couple of well formed
testcases:

  http://gcc.gnu.org/ml/gcc-patches/2003-11/msg01289.html

Paolo.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |SUSPENDED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12988

[Bug libstdc++/12988] Serious problems with 22.2.2.2.2, Stage2, both floats and ints

[paolo at gcc dot gnu dot org]

------- Additional Comments From paolo at gcc dot gnu dot org  2003-11-26 12:45 -------
I think we can safely close it.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12988