* bug or feature? partial specialization doesn't work in nestedcontext
@ 1999-05-22 11:31 Seapig6
1999-05-22 11:44 ` bug or feature? partial specialization doesn't work innested context mark
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Seapig6 @ 1999-05-22 11:31 UTC (permalink / raw)
To: egcs; +Cc: kosak
[if you reply by email, please use the kosak@cs.cmu.edu address]
I can't quite figure out if this is an egcs bug or a deliberate language
feature (suggestions for better reference books than Stroustrup III
gratefully accepted)
> cat partial.cc && g++ -v && g++ partial.cc
template<class T> struct cow {
template <class U> struct moo;
struct moo<char> { };
};
Reading specs from
/afs/cs.cmu.edu/project/cmcl-kosak/various-gcc/egcs-19990517/i386_linux3/lib/g
cc-lib/i686-pc-linux-gnu/egcs-2.93.22/specs
gcc version egcs-2.93.22 19990517 (gcc2 ss-980929 experimental)
partial.cc:3: template parameters not used in partial specialization:
partial.cc:3: `T'
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: bug or feature? partial specialization doesn't work innested context
1999-05-22 11:31 bug or feature? partial specialization doesn't work in nestedcontext Seapig6
@ 1999-05-22 11:44 ` mark
1999-05-31 21:36 ` mark
1999-05-24 11:07 ` bug or feature? partial specialization doesn't work in nestedcontext Gerald Pfeifer
1999-05-31 21:36 ` Seapig6
2 siblings, 1 reply; 6+ messages in thread
From: mark @ 1999-05-22 11:44 UTC (permalink / raw)
To: Seapig6; +Cc: egcs, kosak
>>>>> "Seapig6" == Seapig6 <Seapig6@aol.com> writes:
Seapig6> template<class T> struct cow { template <class U> struct
Seapig6> moo; struct moo<char> { }; };
That's not a great error-message that you get, but your code is
illegal. First, whenever you want an explicit specialization, the
standard requires you proceed it with `template <>'. But, explicit
specializations are not allowed anywhere but in namespace scope; EGCS
will tell you this if you add the `template<>', and that's essentially
what's confusing it in your original case as well.
--
Mark Mitchell mark@codesourcery.com
CodeSourcery, LLC http://www.codesourcery.com
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: bug or feature? partial specialization doesn't work in nestedcontext
1999-05-22 11:31 bug or feature? partial specialization doesn't work in nestedcontext Seapig6
1999-05-22 11:44 ` bug or feature? partial specialization doesn't work innested context mark
@ 1999-05-24 11:07 ` Gerald Pfeifer
1999-05-31 21:36 ` Gerald Pfeifer
1999-05-31 21:36 ` Seapig6
2 siblings, 1 reply; 6+ messages in thread
From: Gerald Pfeifer @ 1999-05-24 11:07 UTC (permalink / raw)
To: Seapig6; +Cc: egcs, kosak
On Sat, 22 May 1999 Seapig6@aol.com wrote:
> I can't quite figure out if this is an egcs bug or a deliberate language
> feature (suggestions for better reference books than Stroustrup III
> gratefully accepted)
The ISO C++ standard, available as PDF at http://www.ansi.org/ (for a
small fee).
Gerald
--
Gerald "Jerry" pfeifer@dbai.tuwien.ac.at http://www.dbai.tuwien.ac.at/~pfeifer/
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: bug or feature? partial specialization doesn't work in nestedcontext
1999-05-24 11:07 ` bug or feature? partial specialization doesn't work in nestedcontext Gerald Pfeifer
@ 1999-05-31 21:36 ` Gerald Pfeifer
0 siblings, 0 replies; 6+ messages in thread
From: Gerald Pfeifer @ 1999-05-31 21:36 UTC (permalink / raw)
To: Seapig6; +Cc: egcs, kosak
On Sat, 22 May 1999 Seapig6@aol.com wrote:
> I can't quite figure out if this is an egcs bug or a deliberate language
> feature (suggestions for better reference books than Stroustrup III
> gratefully accepted)
The ISO C++ standard, available as PDF at http://www.ansi.org/ (for a
small fee).
Gerald
--
Gerald "Jerry" pfeifer@dbai.tuwien.ac.at http://www.dbai.tuwien.ac.at/~pfeifer/
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: bug or feature? partial specialization doesn't work innested context
1999-05-22 11:44 ` bug or feature? partial specialization doesn't work innested context mark
@ 1999-05-31 21:36 ` mark
0 siblings, 0 replies; 6+ messages in thread
From: mark @ 1999-05-31 21:36 UTC (permalink / raw)
To: Seapig6; +Cc: egcs, kosak
>>>>> "Seapig6" == Seapig6 <Seapig6@aol.com> writes:
Seapig6> template<class T> struct cow { template <class U> struct
Seapig6> moo; struct moo<char> { }; };
That's not a great error-message that you get, but your code is
illegal. First, whenever you want an explicit specialization, the
standard requires you proceed it with `template <>'. But, explicit
specializations are not allowed anywhere but in namespace scope; EGCS
will tell you this if you add the `template<>', and that's essentially
what's confusing it in your original case as well.
--
Mark Mitchell mark@codesourcery.com
CodeSourcery, LLC http://www.codesourcery.com
^ permalink raw reply [flat|nested] 6+ messages in thread
* bug or feature? partial specialization doesn't work in nestedcontext
1999-05-22 11:31 bug or feature? partial specialization doesn't work in nestedcontext Seapig6
1999-05-22 11:44 ` bug or feature? partial specialization doesn't work innested context mark
1999-05-24 11:07 ` bug or feature? partial specialization doesn't work in nestedcontext Gerald Pfeifer
@ 1999-05-31 21:36 ` Seapig6
2 siblings, 0 replies; 6+ messages in thread
From: Seapig6 @ 1999-05-31 21:36 UTC (permalink / raw)
To: egcs; +Cc: kosak
[if you reply by email, please use the kosak@cs.cmu.edu address]
I can't quite figure out if this is an egcs bug or a deliberate language
feature (suggestions for better reference books than Stroustrup III
gratefully accepted)
> cat partial.cc && g++ -v && g++ partial.cc
template<class T> struct cow {
template <class U> struct moo;
struct moo<char> { };
};
Reading specs from
/afs/cs.cmu.edu/project/cmcl-kosak/various-gcc/egcs-19990517/i386_linux3/lib/g
cc-lib/i686-pc-linux-gnu/egcs-2.93.22/specs
gcc version egcs-2.93.22 19990517 (gcc2 ss-980929 experimental)
partial.cc:3: template parameters not used in partial specialization:
partial.cc:3: `T'
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~1999-05-31 21:36 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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1999-05-22 11:31 bug or feature? partial specialization doesn't work in nestedcontext Seapig6
1999-05-22 11:44 ` bug or feature? partial specialization doesn't work innested context mark
1999-05-31 21:36 ` mark
1999-05-24 11:07 ` bug or feature? partial specialization doesn't work in nestedcontext Gerald Pfeifer
1999-05-31 21:36 ` Gerald Pfeifer
1999-05-31 21:36 ` Seapig6
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