From: Tom Tromey <tromey@redhat.com>
To: sami wagiaalla <swagiaal@redhat.com>
Cc: gdb-patches@sourceware.org
Subject: Re: [patch 1/3] Template Lookup
Date: Tue, 31 Aug 2010 22:05:00 -0000 [thread overview]
Message-ID: <m339tufnez.fsf@fleche.redhat.com> (raw)
In-Reply-To: <4C7690B4.7020504@redhat.com> (sami wagiaalla's message of "Thu, 26 Aug 2010 12:05:08 -0400")
>>>>> "Sami" == sami wagiaalla <swagiaal@redhat.com> writes:
Sami> Hmm.. can you give me an example of this ? I tried to construct an
Sami> example with an extern function but I learned that cplus does not
Sami> allow extern template functions.
Ordinarily, to make a test involving psymtab expansion, you have to make
two compilation units.
Put this into one file:
template<typename T> double f (T x) { return x; }
int g (void)
{
return f(1.0) + f(2);
}
Put this in another file:
extern int g(void);
int main()
{
return g();
}
Compile, debug, and "start".
Now in main:
(gdb) p f(1.0)
No symbol "f" in current context.
(gdb) p f<double>(1.0)
$1 = 1
... but if you step into g, it works:
(gdb) s
g () at q1.cc:5
5 return f(1.0) + f(2);
(gdb) p f(1.0)
$2 = 1
Tom> There are a couple instances of this that have to be updated in light of
Tom> Doug's recent change to how this is done.
Sami> What is the change that Doug made ?
He added various set_lang_ functions.
Maybe I'm mistaken about the need for this, as there doesn't seem to be
a special function for C++.
Tom
next prev parent reply other threads:[~2010-08-31 22:05 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-19 15:28 sami wagiaalla
2010-07-20 20:42 ` sami wagiaalla
2010-08-18 21:45 ` Tom Tromey
2010-08-26 16:05 ` sami wagiaalla
2010-08-31 22:05 ` Tom Tromey [this message]
2010-09-23 18:43 ` [patch 4/4] " sami wagiaalla
2010-09-23 17:55 ` [patch 1/4] " sami wagiaalla
2010-10-05 19:08 ` sami wagiaalla
2010-10-14 15:23 ` sami wagiaalla
2010-11-01 20:15 ` sami wagiaalla
2010-08-11 18:13 ` [patch 1/3] " sami wagiaalla
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