How to print the return value of a template member function

How to print the return value of a template member function

[Peng Yu]

Hi,

I have the following program listed below this email. I want to
inspect 'a.get<0>()' from gdb. But I got the following error message.
Can you show me what the right way should be?

(gdb) start
Breakpoint 1 at 0x80489a4: file main.cc, line 5.
[Thread debugging using libthread_db enabled]
[New Thread -1217684800 (LWP 6424)]
[Switching to Thread -1217684800 (LWP 6424)]
main () at main.cc:5
5         boost::tuple<int, int> a(10, 10);
(gdb) n
6         std::cout << a.get<0>() << " " << a.get<1>() << std::endl;
(gdb) p a.get<0>()
Couldn't find method
boost::tuples::tuple<int,int,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type>::get<0>
(gdb)

Thanks,
Peng

$ cat main.cc
#include <boost/tuple/tuple.hpp>
#include <iostream>

int main() {
  boost::tuple<int, int> a(10, 10);
  std::cout << a.get<0>() << " " << a.get<1>() << std::endl;
}

Re: How to print the return value of a template member function

[Andreas Schwab]

"Peng Yu" <pengyu.ut@gmail.com> writes:

> I have the following program listed below this email. I want to
> inspect 'a.get<0>()' from gdb. But I got the following error message.
> Can you show me what the right way should be?

Works for me with gdb 6.5.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
PGP key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."

Re: How to print the return value of a template member function

[Peng Yu]

On 11/15/06, Andreas Schwab <schwab@suse.de> wrote:
> "Peng Yu" <pengyu.ut@gmail.com> writes:
>
> > I have the following program listed below this email. I want to
> > inspect 'a.get<0>()' from gdb. But I got the following error message.
> > Can you show me what the right way should be?
>
> Works for me with gdb 6.5.
>
> Andreas.

Hi Andreas,

I don't see version 6.5. Would you please let me know where to get it?
http://www.gnu.org/software/gdb/

Thanks,
Peng

Re: How to print the return value of a template member function

[Andreas Schwab]

"Peng Yu" <pengyu.ut@gmail.com> writes:

> I don't see version 6.5. Would you please let me know where to get it?

http://sourceware.org/ml/gdb/2006-06/msg00168.html

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
PGP key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."