Re: Difference between g++ and c++?

On 01/27/2010 12:18 PM, Germán A. Racca wrote:

On Wed, 2010-01-27 at 12:07 +0100, Joachim Backes wrote:

Hi,

In F12, I installed gcc-c++, containing /usr/bin/g++ and /usr/bin/c++:
comparing both, getting the result: these files are identical. Why then
c++ is not a link to g++? Are there important philosophical or
historical reasons?

ls -l /usr/bin/c++ /usr/bin/g++
-rwxr-xr-x 4 root root 235972 2009-12-22 13:57 /usr/bin/c++
-rwxr-xr-x 4 root root 235972 2009-12-22 13:57 /usr/bin/g++

diff /usr/bin/c++ /usr/bin/g++&&  echo files are identical
files are identical

Regards

They are links to the same file.

$ file /usr/lib64/ccache/g++
/usr/lib64/ccache/g++: symbolic link to `../../bin/ccache'

$ file /usr/lib64/ccache/c++
/usr/lib64/ccache/c++: symbolic link to `../../bin/ccache'

Hi German,

Maybe for the 64bit binaries, but not for the 32bit binaries:

file /usr/bin/g++ /usr/bin/c++

/usr/bin/g++: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, stripped /usr/bin/c++: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, stripped

And /usr/lib/ccache (belonging to the ccache package) is not standardly installed!

Not until having installed ccache, then ccache will contain g++ and c++:

 ls -l /usr/lib/ccache
total 0
lrwxrwxrwx 1 root root 16 2010-01-27 12:29 c++ -> ../../bin/ccache
lrwxrwxrwx 1 root root 16 2010-01-27 12:29 cc -> ../../bin/ccache
lrwxrwxrwx 1 root root 16 2010-01-27 12:29 g++ -> ../../bin/ccache
lrwxrwxrwx 1 root root 16 2010-01-27 12:29 gcc -> ../../bin/ccache

lrwxrwxrwx 1 root root 16 2010-01-27 12:29 i686-redhat-linux-c++ -> ../../bin/ccache lrwxrwxrwx 1 root root 16 2010-01-27 12:29 i686-redhat-linux-g++ -> ../../bin/ccache lrwxrwxrwx 1 root root 16 2010-01-27 12:29 i686-redhat-linux-gcc -> ../../bin/ccache

Regards

--
Joachim Backes <joachim.backes@xxxxxxxxxxxxxx>

http://www.rhrk.uni-kl.de/~backes

Attachment: smime.p7s
Description: S/MIME Cryptographic Signature

-- 
users mailing list
users@xxxxxxxxxxxxxxxxxxxxxxx
To unsubscribe or change subscription options:
https://admin.fedoraproject.org/mailman/listinfo/users
Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines