[1.33][tuple] Problem with tuples longer than 10 elements
Hi
The code:
#include
That is general limitation. The documentation says:
"The current version supports tuples with 0-10 elements."
If you want more and more features I would recommend using
boost::fusion. This is an awesome lib. But your compiler will hate it.
;-)
Let me know if you have more questions.
Christian
On 5/15/07, Seweryn Habdank-Wojewódzki
Hi
The code:
#include
typedef boost::tuple
Foo; int main() {}
Is working. But if I add one more field:
#include
typedef boost::tuple
Foo; int main() {}
I have an error:
tuple_type.cpp:3: error: wrong number of template arguments (11, should be 10) /usr/include/boost/tuple/detail/tuple_basic.hpp:75: error: provided for ?template
class boost::tuples::tuple? tuple_type.cpp:3: error: invalid type in declaration before ?;? token Why this error occurs?
My kompiler is gcc 4.1
Regards.
--
|\/\/| Seweryn Habdank-Wojewódzki \/\/ _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users
Hi
That is general limitation. The documentation says:
"The current version supports tuples with 0-10 elements."
OK. I did not find that.
If you want more and more features I would recommend using boost::fusion. This is an awesome lib. But your compiler will hate it. ;-)
I will look. :-)
Let me know if you have more questions.
Thanks a lot, for information. Best regards. -- |\/\/| Seweryn Habdank-Wojewódzki \/\/
----- Mensaje original -----
De: Seweryn Habdank-Wojewódzki
Hi
That is general limitation. The documentation says:
"The current version supports tuples with 0-10 elements."
OK. I did not find that.
If you don't mind using a more cumbersome notation, cons lists
can be used to circumvent this limitation:
http://boost.org/libs/tuple/doc/tuple_advanced_interface.html
For instance:
#include > > > > > > > > > > long_tuple; int main()
{
long_tuple lt;
T10 t10=lt.get<10>();
}
HTH,
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
Hi!
If you don't mind using a more cumbersome notation, cons lists can be used to circumvent this limitation:
http://boost.org/libs/tuple/doc/tuple_advanced_interface.html
For instance:
#include
[...]
int main() { long_tuple lt; T10 t10=lt.get<10>(); }
What I could say? It's really cool :-). By the way it was my fault that I do not find "10 elements boundary". I have just opened the book about boost (by Karlsson) and there is written about this limitation on the second page about tuples. I am sorry for the mess. Regards. -- |\/\/| Seweryn Habdank-Wojewódzki \/\/
On 5/15/07, Seweryn Habdank-Wojewódzki
By the way it was my fault that I do not find "10 elements boundary". I have just opened the book about boost (by Karlsson) and there is written about this limitation on the second page about tuples.
Just curious, did the book mention the cons solution? Tony
I suspect you mean the Beyond the C++ Standard Library book. I don't
think it's mentioned there. It's not in the index and by browsing
through the tuple's chapter I could make out references to cons.
Christian
On 5/17/07, Gottlob Frege
On 5/15/07, Seweryn Habdank-Wojewódzki
wrote: By the way it was my fault that I do not find "10 elements boundary". I have just opened the book about boost (by Karlsson) and there is written about this limitation on the second page about tuples.
Just curious, did the book mention the cons solution?
Tony _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users
Hi Gottlob Frege wrote:
On 5/15/07, Seweryn Habdank-Wojewódzki
wrote: By the way it was my fault that I do not find "10 elements boundary". I have just opened the book about boost (by Karlsson) and there is written about this limitation on the second page about tuples.
Just curious, did the book mention the cons solution?
No. The book says, that for advance topics look to the website. However for example iteration on tuples are explained. What is in my opinion more tricky then "cons" stuff. Regards. -- |\/\/| Seweryn Habdank-Wojewódzki \/\/
participants (4)
-
"JOAQUIN LOPEZ MU?Z"
-
Christian Henning
-
Gottlob Frege
-
Seweryn Habdank-Wojewódzki