Sort a std::list with myclass::operator<(myclass &other)

Question

I have a std::list and in my class I have myclass::operator<(myclass &other) defined.

I use the std::list.sort

Answer 1

I was trying out the template PComp example and since other classes would be using the PComp I stuck in the the include file for the class the std::list was holding. However when I compiled the task I got this:

In member function ‘EcTVoid FdFtTSBFDFTableLoadAppl::IngestTableProducts(const string&, const EcTInt&)’:
/mms_builds/working/jkerich/MMS_SDF/sw/mms/dms/FdFtTSB/src/FdFtTSBFDFTableLoadAppl.C:782:53  error: no matching function for call to ‘std::list::sort()’
   myIngestedTables.sort(sorter.PComp); // sorted list
                                                     ^
/mms_builds/working/jkerich/MMS_SDF/sw/mms/dms/FdFtTSB/src/FdFtTSBFDFTableLoadAppl.C:782:53  note: candidates are:
In file included from /usr/include/c++/4.8.2/list:64:0,
                 from /mms_builds/working/jkerich/MMS_SDF/sw/mms/foscommon/common/FoCf/include/FoCfConfigSetup.h:11,
                 from /mms_builds/working/jkerich/MMS_SDF/sw/mms/foscommon/common/FoCf/include/FoCfTypes.h:156,
                 from /mms_builds/working/jkerich/MMS_SDF/sw/mms/dms/FdFtTSB/src/FdFtTSBFDFTableLoadAppl.C:18:
/usr/include/c++/4.8.2/bits/list.tcc:353:5: note: void std::list<_Tp, _Alloc>::sort() [with _Tp = FoFmVirtualTbl*; _Alloc = std::allocator]
     list<_Tp, _Alloc>::
     ^
/usr/include/c++/4.8.2/bits/list.tcc:353:5: note:   candidate expects 0 arguments, 1 provided
/usr/include/c++/4.8.2/bits/list.tcc:430:7: note: void std::list<_Tp, _Alloc>::sort(_StrictWeakOrdering) [with _StrictWeakOrdering = bool (FoFmVirtualTbl::*)(const FoFmVirtualTbl* const&, const FoFmVirtualTbl* const&); _Tp = FoFmVirtualTbl*; _Alloc = std::allocator]
       list<_Tp, _Alloc>::
       ^
/usr/include/c++/4.8.2/bits/list.tcc:430:7: note:   no known conversion for argument 1 from ‘’ to ‘bool (FoFmVirtualTbl::*)(const FoFmVirtualTbl* const&, const FoFmVirtualTbl* const&)’
In file included from /ecs/MMS_SDF/RogueWave/13.2/dbg/rw/config/rwconfig_tls.h:9:0,
                 from /ecs/MMS_SDF/RogueWave/13.2/dbg/rw/compiler.h:5,
                 from /ecs/MMS_SDF/RogueWave/13.2/dbg/rw/defs.h:46,
                 from /ecs/MMS_SDF/RogueWave/13.2/dbg/rw/cstring.h:33,
                 from /mms_builds/working/jkerich/MMS_SDF/sw/mms/foscommon/common/FoCf/include/FoCfTypes.h:11,
                 from /mms_builds/working/jkerich/MMS_SDF/sw/mms/dms/FdFtTSB/src/FdFtTSBFDFTableLoadAppl.C:18:

The template is this:

template  bool PComp(const T * const & a, const T * const & b)
{
    EcTInt status = a->compareTo(b);
    return ((status == -1) ? true : false);
}

the calls I tried in FdFtTSBFDFTableLoadAppl.C were:

myIngestedTables.sort(PComp);   // sorted list

or

FoFmVirtualTbl sorter;
myIngestedTables.sort(sorter.PComp);    // sorted lis

t

Only when the template was declared in FdFtTSBFDFTableLoadAppl did it compile ok. So how would I get this to compile if the template is in some others class include?