template/STL interaction

[D Maley]

Hi,

I'm encountering problems trying to compile code under egcs1.1 that compiled
OK under 1.0.2. My system does calculations in Computational Physics, but
I've tried to throw out as many specifics as I can and isolate the problem.
The constructs may look weird, but I think they're legal.

Number One.

#include <pair.h>

template <class T> class Composite2 : public pair<typename T::first_type,
typename T::second_type> {
public:
  Composite2() : pair() {}
  Composite2(typename T::first_type, typename T::second_type);
};

/////////////////////////////////////////////////////////////
//
//          Commencing 'Help-the-Compiler' Section
//
template class pair<int, float>;
template class Composite2<pair<int, float> >;
//
//            End of Compiler Assistance Section
//
/////////////////////////////////////////////////////////////

template <class T> Composite2<T>::Composite2(typename T::first_type s,
typename T::second_type t) : pair<typename T::first_type, typename
T::second_type>(s, t) { }

gcc -DXTFUNCPROTO -DSUN -w -frepo -I/usr/openwin/include
-I/usr/dt/share/include -I.  -c -o bug.o bug.cpp 2>>err
*** Error code 1
make: Fatal error: Command failed for target `bug.o'
bug.cpp: In method `Composite2<pair<int,float>
>::Composite2<pair<int,float>>()':
bug.cpp:14:   instantiated from here
bug.cpp:5: Internal compiler error.
bug.cpp:5: Please submit a full bug report to `egcs-bugs@cygnus.com'.

Commenting out lines 6 & 20 yields:

gcc -DXTFUNCPROTO -DSUN -w -frepo -I/usr/openwin/include
-I/usr/dt/share/include -I.  -c -o bug.o bug.cpp 2>>err
*** Error code 1
make: Fatal error: Command failed for target `bug.o'
bug.cpp: In method `Composite2<pair<int,float>
>::Composite2<pair<int,float>>()':
bug.cpp:14:   instantiated from here
bug.cpp:5: type `pair<pair<int,float>,T2>' is not a base type for type
`Composite2<pair<int,float> >'

*/

Number Two.

File 1:

/////////////////////////////////////////////////////////////
//
//                      Composite.h
//
/////////////////////////////////////////////////////////////

#include <pair.h>

template <class S, class T> class Pair : public pair<S, T> {
public:
  Pair();
  Pair(S, T);
};

File 2:

/////////////////////////////////////////////////////////////
//
//                      Composite.cpp
//
/////////////////////////////////////////////////////////////

#pragma implementation "Composite.h"

#include "Composite.h"

/////////////////////////////////////////////////////////////
//
//          Commencing 'Help-the-Compiler' Section
//

template class Pair<Pair<int, float>, double>;

//
//            End of Compiler Assistance Section
//
/////////////////////////////////////////////////////////////

template <class S, class T> Pair<S, T>::Pair() : pair<S, T>() { }

template <class S, class T> Pair<S, T>::Pair(S s, T t) : pair<S, T>(s, t) { }

void main() {}



gcc -DXTFUNCPROTO -DSUN -w -falt-external-templates -I/usr/openwin/include
-I/usr/dt/share/include -I.  -c -o Composite.o Composite.cpp 2>>err
*** Error code 1
make: Fatal error: Command failed for target `Composite.o'
/usr/local/include/g++/stl_pair.h: In method
`pair<Pair<int,float>,double>::pair<int, float>(const struct pair<int,float>
&)':
Composite.cpp:25:   instantiated from here
/usr/local/include/g++/stl_pair.h:48: no matching function for call to
`Pair<int,float>::Pair (const int &)'
Composite.cpp:16: candidates are: Pair<int,float>::Pair(const Pair<int,float> &)
Composite.cpp:23:                 Pair<int,float>::Pair<int, float>()
Composite.cpp:25:                 Pair<int,float>::Pair<int, float>(int, float)

I don't know where "pair<Pair<int,float>,double>::pair<int, float>" comes
from. I'm trying to move away from using -falt-external-templates, but its
been the only template options that's worked in the past. In this example,
if the code header file is actually placed in the source file, replacing the
#include, the code compiles, but that's no use when I scale up.

 I don't know what comprises a full bug report, so I've just given you the
code and the messages. I'm on a P200 under Solaris 2.6.

        --- |================================================|
      ----  |-=|         Dave Maley, M.A., M.Phil.        |=-| ,---I
      ---   |================================================| |== U-----
        --- | Computer Manager, St. Mary's College, Belfast  | |== U (: |
      ---   |________________________________________________| |   U----'-----
     -----  |________________________________/   ____====______|   U'  ()___(|
        ---  #__ //,-,  ,-,  ,-,\\         \|   ///,-,  ,-, \\ -------/,-,\_[
                ''( 0 )( 0 )( 0 )'          o  -''( 0 )( 0 ) \\#####====( 0 )
     --------------'-'--'-'--'-'-------------------'-'--'-'--------------'-'----