C++

divorce3 · 04-18-2005, 06:22 PM

I'm trying to compile and run C++ in Fedora Core3 with no success.
C no problem but they are hiding the C++ compiler somewhere.
Does anyone know the command.

Thanks

Mega Man X · 04-18-2005, 06:28 PM

Please, post your code and commands you are trying to compile and, of course, the errors messages you are getting.

divorce3 · 04-18-2005, 06:50 PM

Megaman X

My code is fine. Why would you want error messages.
All I want is the command as in C to compile:gcc -o hello hello.c
to run: ./hello

Mega Man X · 04-18-2005, 07:21 PM

Quote:

Originally posted by divorce3
Megaman X

My code is fine. Why would you want error messages.
All I want is the command as in C to compile:gcc -o hello hello.c
to run: ./hello

Because if I don't know what you are typing to compile, I don't know why it's not working. If you get a "commando not found", then most likely you have gcc but not g++ installed. The command should be:

g++ -o hello hello.cpp

That could be different in FC. Redhat tends to like custom names, paths and kernel

It's always important to give as much detail as possible... regardless the problem and always give the error messages... that's how we start to debug something

divorce3 · 04-18-2005, 08:19 PM

Megaman X

That command works perfectly well with Red Hat 7 which I have
been using. Apparently g++ is in there somewhere but it has to
be accessed through gcc according to the Man page but I can't
work it out.

Tinkster · 04-18-2005, 08:28 PM

Tried a
locate g++ | grep bin
yet?

Or, since it's Redhat,
rpm -ql `rpm -qa` | grep g++

Cheers,
Tink

Mega Man X · 04-18-2005, 09:26 PM

I went to Fedora's homepage and found that the package name for g++ is called "gcc-c++-4.0.0-0.42.i386.rpm"

I would try "gcc-c++ -o hello hello.cpp" as a blind shot. And man, I loved Redhat 7.x series. 7.3 is absolutely my favorite. Things got pretty rough after that though... starting with custom kernel and drop of mp3/media support :\

trickykid · 04-18-2005, 09:51 PM

You can't compile in Fedora Core cause they don't install it by default, unless you specified it during a custom install. Install the appropiate packages and you'll have your C compiler.

reddazz · 04-19-2005, 12:27 AM

If you install gcc-c++ using yum or apt, then your problems should be solved. To compile a program, you still have to run the command as "g++".

divorce3 · 04-19-2005, 11:25 AM

locate g++ | grep bin
It is in /usr/bin but I still don't Know the command to compile.

Komakino · 04-19-2005, 12:44 PM

Quote:

Originally posted by divorce3
locate g++ | grep bin
It is in /usr/bin but I still don't Know the command to compile.

The command to compile is:
g++ file.cc -o file

Which will compile file.cc into the binary "file".

g++ is a kind of wrapper to gcc (which is what you read in the man page and why you see it as being called through gcc) but you still call it as g++.

divorce3 · 04-19-2005, 11:02 PM

Komakino

I tried that, nothing!

Tinkster · 04-19-2005, 11:32 PM

Absolutely nothing, not even a shell error message?

C'mon mate, be more specific, provide us with info :}

Cheers,
Tink

divorce3 · 04-20-2005, 12:22 AM

tink

g++ file.cc -o file produced a million lines similar to this:

/usr/lib/gcc/i386-redhat-linux/3.4.2./../../../../include/c++/3.4.2/i386-redhat-linux/bita/codecvt-specializations.h:269:error-inbytes'was
not declared in this scope

Tinkster · 04-20-2005, 12:30 AM

In other words the source is flawed, or some includes
are missing/messed up ... g++ *IS* working, just doesn't
give you what you expect.

Cheers,
Tink