id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
13287	Broken wchar EQUAL	stier08@…	Gennadiy Rozental	"boost: boost_1_65_1-msvc-14.1-32.exe 

Problem description: BOOST_REQUIRE_EQUAL does not work with unicode arguments on windows platform with official boost dlls. 

Namely does not 

1) compile with std::wstring (see example 1 below)

2) link with wchar_t* (see example 2 below)

arguments on windows platform with official boost dlls. 

Some analysis from my side.

Could not test static libraries, as could not figure out how to link against official static libs.

I was able to build static boost test lib manually as described at http://www.boost.org/doc/libs/1_65_1/libs/test/doc/html/boost_test/adv_scenarios/static_lib_customizations/entry_point.html. I.e. b2 --with-test link=static define=BOOST_TEST_NO_MAIN define=BOOST_TEST_ALTERNATIVE_INIT_API

and make BOOST_REQUIRE_EQUAL to accept wchar_t. See example 3  below. Unfortunately  example 3 did not compile with official binaries (?!)

boost::test_tools::tt_detail::equal_impl(wchar_t const *,wchar_t const *) is lost in dlls, but available in static lib. In boost_1_54_0-msvc-11.0-32.exe however, equal_impl(wchar_t const *,wchar_t const *) is available in boost_unit_test_framework-vc110-1_54.dll. 

--- Example 1 ---
{{{

#include <iostream>
#include <memory>
#include <string>

#define BOOST_TEST_MODULE test_module_name
#define BOOST_TEST_DYN_LINK
#define BOOST_TEST_NO_MAIN
#include <boost/test/unit_test.hpp>


BOOST_AUTO_TEST_SUITE( boost_my_test  );

BOOST_AUTO_TEST_CASE(boost_my_test_1)
{
  std::wstring v1(L""a"");
  std::wstring v2(L""a"");
  BOOST_REQUIRE_EQUAL(v1, v2);
}

BOOST_AUTO_TEST_SUITE_END();

int main(int argc, char* argv[], char* envp[])
{
  return boost::unit_test::unit_test_main( &init_unit_test, argc, argv );
}

}}}

Error:
{{{
D:\LIBS\boost\boost-1_65_1\boost/test/tools/detail/print_helper.hpp(52): error C2338: Type has to implement operator<< to be printable
D:\LIBS\boost\boost-1_65_1\boost/test/tools/detail/print_helper.hpp(61): note: see reference to function template instantiation 'std::ostream &boost::test_tools::tt_detail::impl::boost_test_print_type<R>(std::ostream &,const T &)' being compiled
        with
        [
            R=std::wstring,
            T=std::wstring
        ]
}}}

--- Example 2 ---
{{{
#include <iostream>
#include <memory>
#include <string>

#define BOOST_TEST_MODULE test_module_name
#define BOOST_TEST_DYN_LINK
#define BOOST_TEST_NO_MAIN
#include <boost/test/unit_test.hpp>


BOOST_AUTO_TEST_SUITE( boost_my_test  );

BOOST_AUTO_TEST_CASE(boost_my_test_1)
{
  const wchar_t* v1 = L""a"";
  const wchar_t* v2 = L""a"";
  BOOST_REQUIRE_EQUAL(v1, v2);
}

BOOST_AUTO_TEST_SUITE_END();

int main(int argc, char* argv[], char* envp[])
{
  return boost::unit_test::unit_test_main( &init_unit_test, argc, argv );
}

}}}
Error:
{{{
 error LNK2001: unresolved external symbol ""__declspec(dllimport) class boost::test_tools::assertion_result __cdecl boost::test_tools::tt_detail::equal_impl(wchar_t const *,wchar_t const *)"" (__imp_?equal_impl@tt_detail@test_tools@boost@@YA?AVassertion_result@23@PB_W0@Z)
}}}

-- Example 3 --
{{{

#include <iostream>
#include <memory>
#include <string>

#define BOOST_TEST_MODULE test_module_name
#define BOOST_TEST_NO_MAIN
#define BOOST_TEST_ALTERNATIVE_INIT_API
#include <boost/test/unit_test.hpp>


BOOST_AUTO_TEST_SUITE( boost_my_test  );

BOOST_AUTO_TEST_CASE(boost_my_test_1)
{
  const wchar_t* v1 = L""a"";
  const wchar_t* v2 = L""a"";
  BOOST_REQUIRE_EQUAL(v1, v2);
}

BOOST_AUTO_TEST_SUITE_END();


int main(int argc, char* argv[], char* envp[])
{
  return boost::unit_test::unit_test_main(init_unit_test, argc, argv);
}

}}}"	Bugs	new	To Be Determined	test	Boost 1.65.0	Problem