RE: [Boost-Users] tuple and enums

Hello Jaakko, Thanks for replying. It works if the constructor is written cons() {} Is there any purpose to putting those default calls there? Tom

From: Jaakko Jarvi [mailto:jajarvi@cs.indiana.edu] Sent: Thursday, August 29, 2002 8:16 AM

Hi Tom,

Your code compiles fine with gcc 3.x and icc 6 (linux), so it may just be gcc 2.96 problem.

Cheers, Jaakko

On Wed, 28 Aug 2002, Tom Matelich wrote:

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It appears that an enum cannot be default constructed in the way that tuple does, cons() : head(), tail() {}

Any idea on how to get around this (besides using an int in the tuple)?

Thanks, Tom

#include #include <string>

enum Foo { Willis, Arnold };

void test() {       boost::tuple a; }

/usr/local/eddynet/opt/include/boost/tuple/detail/tuple_basic.hpp: In

...

method `boost::tuples::cons::cons () [with HT = Foo, TT = boost::tuples::cons]':

/usr/local/eddynet/opt/include/boost/tuple/detail/tuple_basic.hpp:454:

...

instantiated from `boost::tuples::tuple::tuple () [with T0 = Foo, T1 = string, T2 = boost::tuples::null_type, T3 = boost::tuples::null_type, T4 = boost::tuples::null_type, T5 = boost::tuples::null_type, T6 = boost::tuples::null_type, T7 = boost::tuples::null_type, T8 = boost::tuples::null_type, T9 = boost::tuples::null_type]' tuple_enum_test.cpp:8:   instantiated from here

/usr/local/eddynet/opt/include/boost/tuple/detail/tuple_basic.hpp:263:

...

cannot convert `int' to `Foo' in assignment

</error>

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-- -- -- Jaakko Järvi email: jajarvi@cs.indiana.edu -- Post Doctoral Fellow phone: +1 (812) 855-3608 -- Pervasive Technology Labs fax: +1 (812) 855-4829 -- Indiana University, Bloomington Info: http://www.boost.org Wiki: http://www.crystalclearsoftware.com/cgi-bin/boost_wiki/wiki.pl Unsubscribe: mailto:boost-users-unsubscribe@yahoogroups.com Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/