[lug] Something tweaked in RH 7.1 g++?

[Keith Brown]

For what it is worth, it is my understanding that yes RedHat released an
experimental version 2.96, in 7.0,  which is not a compatible with 2.95 or
anything above 2.96.

Keith
"Keith C. Herold" wrote:

> I have a curious problem.  I know that 7.1 shipped with an "experimental"
> version of the gcc, but what problems exist beyond just trying to compile
> the kernel?  I ask because I am having a tremendous amount of trouble
> compiling simple code, that seems to work correctly.  I have also had
> trouble compiling code that is supposedly tested against 7.1 (no missing
> libraries, either).
>
> For example, I am trying to retrieve an Entry from a class called Dataset.
> The copy and assignment constructors for Entry are implemented correctly
> (according to my testing :) ), and Dataset stores them in a list.  When I
> try to retrieve one item from the list using a list iterator in one
> particular function, it segfaults.  Every other function seems to operate
> correctly, and the various lists are populated with valid data.
>
> Is there something about the 7.1 gcc that you folks know of that causes this
> problem?  I have looked on the gnu web site, but nothing jumps out.
>
> --Keith
>
> > -----Original Message-----
> > From: lug-admin at lug.boulder.co.us [mailto:lug-admin at lug.boulder.co.us]On
> > Behalf Of D. Stimits
> > Sent: Tuesday, September 18, 2001 12:02 PM
> > To: lug at lug.boulder.co.us
> > Subject: Re: [lug] C++ libraries in Linux
> >
> >
> > Keith Brown wrote:
> > >
> > > I hate to reply to my own mail, but my example is not correct.
> > The buf should be
> > > unfrozen with buf.freeze(false), at least according to
> > Josuttis.  Additionally,
> > > strstream has been depreciated and he suggest you use stringstream.
> >
> > I went and replied before I saw your reply :(
> >
> > But I would avoid stringstream unless you will not be porting to older
> > machines. Even RH 6.2 did not have stringstream, at least I recall it
> > was bare in that area. In RH, I think 7.0 is the first to offer it?
> >
> > D. Stimits, stimits at idcomm.com
> >
> > >
> > > Keith
> > >
> > > Keith Brown wrote:
> > >
> > > > Hi,
> > > >
> > > > I believe you have memory leak in your example.  Once you do
> > buf.str(), the
> > > > program owns the *char that is returned, unless it tells
> > strstream otherwise,
> > > > which I forget how to do.  I believe you need to do it like:
> > > >
> > > > char * s = buf.str();
> > > > rtnval = s;
> > > > delete [] s;
> > > > return rtnval;
> > > >
> > > > Keith
> > > >
> > > > "Scott A. Herod" wrote:
> > > >
> > > > > Hi,
> > > > >   I use something like the following:
> > > > >
> > > > > #include
> > > > > <strstream>
> > > > > string paraNode::toString()
> > > > > {
> > > > >     string rtnval;
> > > > >     strstream buf;
> > > > >
> > > > >     buf << "Paragraph: "
> > > > >         << ATTR_ALIGN << " = " << _align << ", "
> > > > >         << ATTR_WRAP_MODE << " = " << _mode
> > > > >         << ends;
> > > > >
> > > > >     rtnval = buf.str();
> > > > >     return rtnval;
> > > > > }
> > > > >
> > > > > > Can it be true?  There are no converters to go from an
> > int to a string?  Or
> > > > > > a double to a string?
> > > > > >
> > > > > > --Keith
> > > > > _______________________________________________
> > > > > Web Page:  http://lug.boulder.co.us
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> > > >
> > > > --
> > > > Keith Brown
> > > > 12640 Xavier St
> > > > Broomfield, CO 80020
> > > > 303.438.8169
> > > >
> > > > _______________________________________________
> > > > Web Page:  http://lug.boulder.co.us
> > > > Mailing List: http://lists.lug.boulder.co.us/mailman/listinfo/lug
> > >
> > > --
> > > Keith Brown
> > > 12640 Xavier St
> > > Broomfield, CO 80020
> > > 303.438.8169
> > >
> > > _______________________________________________
> > > Web Page:  http://lug.boulder.co.us
> > > Mailing List: http://lists.lug.boulder.co.us/mailman/listinfo/lug
> > _______________________________________________
> > Web Page:  http://lug.boulder.co.us
> > Mailing List: http://lists.lug.boulder.co.us/mailman/listinfo/lug
> >
>
> _______________________________________________
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--
Keith Brown
12640 Xavier St
Broomfield, CO 80020
303.438.8169