[Bug c++/15839] New: Requires definition of literal passed as const reference

[Bug c++/15839] New: Requires definition of literal passed as const reference

[igodard at pacbell dot net]

Also, the linker data seems generally wrong because the file/line number in the linker message do not reference the point of problem.

The problem is at powerset.hh:685:
                return lower_bound(TypeTraits<E>::lwb);

TypeTraits<E>::lwb is a manifest constant with value 0x8000 (the smallest short), and lower_bound is declared and defined as:
    iterator    lower_bound(const key_type&) const;

The compiler should pass the constant as a temporary, and does so for other calls of lower_bound, e.g. at testPowerset.cc:230 -
            Assert(*pie.lower_bound(7) == 7);

However, in this case the generated code causes the linker to want a definition so it can build a pointer. If the problematic call is replaced with:
                  E e = TypeTraits<E>::lwb;
                  return lower_bound(e);
the linker error goes away.

I have tried to reduce the case but cannot get it to fail.


Attached are compiler output, source code, and a static library needed to link.

Ivan

-- 
           Summary: Requires definition of literal passed as const reference
           Product: gcc
           Version: 3.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: igodard at pacbell dot net
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15839

[Bug c++/15839] Requires definition of literal passed as const reference

[igodard at pacbell dot net]

------- Additional Comments From igodard at pacbell dot net  2004-06-06 04:34 -------
Created an attachment (id=6479)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=6479&action=view)
Compiler output (-v -save-temps)


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15839

[Bug c++/15839] Requires definition of literal passed as const reference

[igodard at pacbell dot net]

------- Additional Comments From igodard at pacbell dot net  2004-06-06 04:36 -------
Created an attachment (id=6480)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=6480&action=view)
Source code (-save-temps)


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15839

[Bug c++/15839] Requires definition of literal passed as const reference

[igodard at pacbell dot net]

------- Additional Comments From igodard at pacbell dot net  2004-06-06 04:37 -------
Created an attachment (id=6481)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=6481&action=view)
Library (to link app on x86)


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15839

[Bug c++/15839] Requires definition of literal passed as const reference

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-06-06 04:44 -------
Invalid here is a reduced source:
struct t
{
 static const int t1 = 1;
};
int g(const int&){}
int main()
{
  g(t::t1);
}

The problem is that you do not define the static int any where(outside the class).  Read bug 13259 for 
more information as this is a dup of that bug.

Hint for the above testcase adding the following will work:
const int t::t1;

*** This bug has been marked as a duplicate of 13259 ***

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15839

[Bug c++/15839] Requires definition of literal passed as const reference

[igodard at pacbell dot net]

------- Additional Comments From igodard at pacbell dot net  2004-06-06 05:23 -------
If the code is in fact invalid, then please re-open this as a bug where the nostic location info reported by the linker bears no relation to the point of error

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15839

[Bug c++/15839] Requires definition of literal passed as const reference

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-06-06 06:32 -------
Here is the reduced source for the linker problem:
struct t
{
 static const int t1 = 1;
};

int g(const int&){}

template <class T>
int f()
{
  return g(t::t1);
}

int main()
{
  f<int>();
}

It shows line 15 when it should show 11.

I looked at the debuging info and this is not a gcc bug but rather a binutils (ld is part of that project) 
bug so please report it to them, http://sources.redhat.com/bugzilla/ 

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15839

[Bug c++/15839] Requires definition of literal passed as const reference

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-04-28 02:04 -------
Mark as a dup of bug 14404.

*** This bug has been marked as a duplicate of 14404 ***

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15839

[Bug c++/15839] Requires definition of literal passed as const reference

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-04-28 02:03 -------
Reopening to ...

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15839