Re: c++/2318: unable to call templated functions in gdb 6.6

Re: c++/2318: unable to call templated functions in gdb 6.6

[sean finney]

The following reply was made to PR c++/2318; it has been noted by GNATS.

From: sean finney <seanius@seanius.net>
To: gdb-gnats@sources.redhat.com
Cc:  
Subject: Re: c++/2318: unable to call templated functions in gdb 6.6
Date: Sun, 16 Sep 2007 12:09:59 +0200

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 On Friday 14 September 2007 04:38:01 pm gdb-gnats@sources.redhat.com wrote:
 > Thank you very much for your problem report.
 > It has the internal identification `c++/2318'.
 > The individual assigned to look at your
 > report is: unassigned.
 >
 > >Category:       c++
 > >Responsible:    unassigned
 > >Synopsis:       unable to call templated functions in gdb 6.6
 > >Arrival-Date:   Fri Sep 14 14:38:01 UTC 2007
 
 just fyi, this also happens in the latest CVS checkout,
 version 6.7.50-20070916-cvs
 
 
 	sean
 
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c++/2318: unable to call templated functions in gdb 6.6

[seanius]

>Number:         2318
>Category:       c++
>Synopsis:       unable to call templated functions in gdb 6.6
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Sep 14 14:38:01 UTC 2007
>Closed-Date:
>Last-Modified:
>Originator:     seanius@seanius.net
>Release:        6.6
>Organization:
>Environment:

>Description:
due to the lack of the ability to call the operator<< on a class (i believe there are seperate pr's for this?), i've written and forcefully instantiated a small templated "dump" function:

using namespace std;
template<typename T> void dump(T x){ cout << x << endl; }
template void dump<int>(int x);
// more of the same for classes

due to *another* (reported) bug, the return type shows up in the name, so i try and call the function with:

(gdb) call 'void dump<int>(int)'(123)
../../../gdb-6.6/gdb/valops.c:2112: internal-error: find_oload_champ_namespace_loop: Assertion `new_oload_champ != -1' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.

however, in gdb 6.3 it behaves as expected (modulo the wierd calling convention):

(gdb) call 'void dump<int>(int)'(123)
123


so i suppose this is a regression.
>How-To-Repeat:
compile a small program with those declarations, try to call dump.
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: