[Coin-discuss] Compiling Osi with gcc 2.95.3

[Ted Ralphs]

Osi currently does not compile with gcc 2.95.3 because of the following 
lines added to OciColCut.hpp by Lou in version 1.5:

calvin: ~/COIN/Osi/include> cvs diff -r 1.4 -r 1.5 OsiColCut.hpp
Index: OsiColCut.hpp
===================================================================
RCS file: /home/coin/coincvs/COIN/Osi/include/OsiColCut.hpp,v
retrieving revision 1.4
retrieving revision 1.5
diff -r1.4 -r1.5
61a62
 >   using OsiCut::operator== ;
65a67,68
 >
 >   using OsiCut::operator!= ;

The same was done to OsiRowCut.hpp. The log for this revision says 
"Added `using' dec'ls for proper overload resolution." Deleting these 
lines allows it to compile.

Anyone know the reason for the change and why 2.95.3 complains about it? 
Is there a solution that will work for earlier and later versions of 
gcc? Here is the error that occurs before deleting the lines:

Compiling OsiRowCut.cpp
In file included from OsiRowCut.cpp:13:
include/OsiRowCut.hpp:157: cannot adjust access to `bool 
OsiCut::operator ==(const OsiCut &) const' in `class OsiRowCut'
include/OsiRowCut.hpp:75:   because of local method `bool 
OsiRowCut::operator ==(const OsiRowCut &) const' with same name
include/OsiRowCut.hpp:157: cannot adjust access to `bool 
OsiCut::operator !=(const OsiCut &) const' in `class OsiRowCut'
include/OsiRowCut.hpp:79:   because of local method `bool 
OsiRowCut::operator !=(const OsiRowCut &) const' with same name
make[2]: *** [Linux-g/OsiRowCut.o] Error 1
make[2]: Leaving directory `/home2/tkr/COIN/Osi'
make[1]: *** [library] Error 2
make[1]: Leaving directory `/home2/tkr/COIN/Osi'
make: *** [libOsi] Error 2

Cheers,

Ted
-- 
Dr. Ted Ralphs
Assistant Professor
Industrial and Systems Engineering
Lehigh University
(610)758-4784
tkralphs at lehigh.edu
www.lehigh.edu/~tkr2