From: Gennadiy Rozental (gennadiy.rozental_at_[hidden])
Date: 2006-01-03 17:32:06
>I am running Boost 1.33.0 and compiling wiht MinGW. When I compile
> the following source file
>
> =========================
> #include "boost/shared_ptr.hpp"
> #include "boost/test/test_tools.hpp"
> #include "boost/date_time/posix_time/posix_time_types.hpp"
>
> class foo {
> public:
> foo() {}
> ~foo() {}
> boost::posix_time::ptime mExecutionStart;
> };
>
> class foo_test {
> foo_test();
> ~foo_test();
> void run();
> };
>
> void foo_test::run() {
> boost::shared_ptr<foo> testObj(new foo());
> BOOST_CHECK_EQUAL(testObj->mExecutionStart,
> testObj->mExecutionStart);
> };
> =================================
>
> I get the (lengthy) compiler error output below. As you can see,
> something seems to be trying to log something to an output
> stream.
>
> The test compile just fine as long as the BOOST_CHECK_EQUAL()
> doesn't reference a boost::posix_time::ptime variables.
>
> Any ideas?
>
> Merrill Cornish
>
> =================================
>
> E:/Dev-Cpp/Workflow/boost/include/boost/test/test_tools.hpp: In member
> function `void
> boost::test_tools::tt_detail::print_log_value<T>::operator()(std::ostream&,
> const T&) [with T = boost::posix_time::ptime]':
> E:/Dev-Cpp/Workflow/boost/include/boost/test/test_tools.hpp:372:
> instantiated from `std::ostream&
> boost::test_tools::tt_detail::operator<<(std::ostream&, const
> boost::test_tools::tt_detail::print_helper_t<T>&) [with T =
> boost::posix_time::ptime]'
> E:/Dev-Cpp/Workflow/boost/include/boost/test/utils/wrap_stringstream.hpp:66:
> instantiated from `boost::basic_wrap_stringstream<CharT>&
> boost::operator<<(boost::basic_wrap_stringstream<CharT>&, const T&) [with
> CharT = char, T =
> boost::test_tools::tt_detail::print_helper_t<boost::posix_time::ptime>]'
> E:/Dev-Cpp/Workflow/boost/include/boost/test/test_tools.hpp:427:
> instantiated from `void boost::test_tools::tt_detail::check_frwd(Pred,
> boost::wrap_stringstream&, boost::test_tools::const_string, size_t,
> boost::test_tools::tt_detail::tool_level,
> boost::test_tools::tt_detail::check_type, const Arg0&, const char*, const
> Arg1&, const char*) [with Pred =
> boost::test_tools::tt_detail::equal_impl_frwd, Arg0 =
> boost::posix_time::ptime, Arg1 = boost::posix_time::ptime]'
> E:/Dev-Cpp/Workflow/test/src/TimeDemo.cc:19: instantiated from here
> E:/Dev-Cpp/Workflow/boost/include/boost/test/test_tools.hpp:274: error: no
> match for 'operator<<' in 'ostr << t'
You need an output operator << for the boost::posix_time::ptime to be able
to print values in test log.
Gennadiy