Re: [Boost-users] [statechart] - problem withsc::transition<> ->invalid useof'boost::statechart::detail::no_context::no_function [withEvent= jm::ffcp::ev_init]' to form a pointer-to-member-func

From: Zoltan \'cad\' Juhasz (cad_at_[hidden])
Date: 2007-03-13 19:06:04

Andreas Huber <ahd6974-spamboostorgtrap <at> yahoo.com> writes:
> Please let me know how it goes.

Unfortunately not so well.

I downloaded the current version from CVS.

test_a == http://usalug.org/pastebin/pastebin.php?show=392
test_b == http://usalug.org/pastebin/pastebin.php?show=411

gcc41 == (GCC) 4.1.0 20060304 (Red Hat 4.1.0-3),
gcc32 == (GCC) 3.2.3 20030502 (Red Hat Linux 3.2.3-55.fc5)

gcc41 test_a -> success

gcc41 test_b -> g++ -g -I /boost_1_34_alpha/ -std=c++98 -pedantic test.cpp -o 
test
test.cpp: In constructor 'default_state<T>::default_state(typename 
boost::statechart::state<default_state<T>, sample_machine<T>, 
boost::mpl::list<mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, 
mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, 
mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, 
has_no_history>::my_context)':
test.cpp:51: error: there are no arguments to 'post_event' that depend on a 
template parameter, so a declaration of 'post_event' must be available
test.cpp:51: error: (if you use '-fpermissive', G++ will accept your code, but 
allowing the use of an undeclared name is deprecated)
make: *** [debug34_test] Error 1

gcc32 test_a -> g++32 -g -I /boost_1_34_alpha/ -std=c++98 -pedantic test.cpp -o 
test
In file included from test.cpp:17:
/boost_1_34_alpha/boost/statechart/transition.hpp:48: no class template named `
   no_context' in `boost::statechart::detail'
test.cpp:38: object `<expression error>' cannot be used as template argument
test.cpp:38: warning: ISO C++ forbids declaration of `reactions' with no type
make: *** [debug3432_test] Error 1

gcc32 test_b -> g++32 -g -I /boost_1_34_alpha/ -std=c++98 -pedantic test.cpp -o 
test
In file included from test.cpp:19:
/boost_1_34_alpha/boost/statechart/transition.hpp:48: no class template named `
   no_context' in `boost::statechart::detail'
test.cpp:44: object `<expression error>' cannot be used as template argument
test.cpp:44: warning: ISO C++ forbids declaration of `type name' with no type
test.cpp:68:2: warning: no newline at end of file
make: *** [debug3432_test] Error 1

PS: To tell the truth gcc41 is more inportant to me than gcc32, although with 
the "-fpermissive" flag, it can be compiled with gcc41... but it is still ugly. 
(I do not know what kinds of impact that flag implies.)

PS2: And thank you for working this out.

Best Regards,
--
Zoltan 'cad' Juhasz
http://people.inf.elte.hu/cad