input_line_6:2:2: error: function definition is not allowed here
 BOOST_AUTO_TEST_CASE( my_test ) {
 ^
/opt/local/include/boost/test/unit_test_suite.hpp:199:9: note: expanded from macro 'BOOST_AUTO_TEST_CASE'
        BOOST_AUTO_TEST_CASE_NO_DECOR,                                  \
        ^
/opt/local/include/boost/test/detail/pp_variadic.hpp:38:13: note: expanded from macro 'BOOST_TEST_INVOKE_IF_N_ARGS'
            F1,                                                     \
            ^
/opt/local/include/boost/preprocessor/control/iif.hpp:18:57: note: expanded from macro 'BOOST_PP_IIF'
#    define BOOST_PP_IIF(bit, t, f) BOOST_PP_IIF_I(bit, t, f)
                                                        ^
note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
/opt/local/include/boost/test/unit_test_suite.hpp:186:5: note: expanded from macro 'BOOST_AUTO_TEST_CASE_NO_DECOR'
    BOOST_FIXTURE_TEST_CASE_NO_DECOR( test_name,                        \
    ^
/opt/local/include/boost/test/unit_test_suite.hpp:158:73: note: expanded from macro 'BOOST_FIXTURE_TEST_CASE_NO_DECOR'
#define BOOST_FIXTURE_TEST_CASE_NO_DECOR( test_name, F )                \
                                                                        ^
/opt/local/include/boost/test/unit_test_suite.hpp:138:73: note: expanded from macro '\
BOOST_FIXTURE_TEST_CASE_WITH_DECOR'
static void BOOST_AUTO_TC_INVOKER( test_name )()                        \
                                                                        ^
input_line_6:2:2: error: use of undeclared identifier 'my_test_invoker'
/opt/local/include/boost/test/unit_test_suite.hpp:199:9: note: expanded from macro 'BOOST_AUTO_TEST_CASE'
        BOOST_AUTO_TEST_CASE_NO_DECOR,                                  \
        ^
/opt/local/include/boost/test/detail/pp_variadic.hpp:38:13: note: expanded from macro 'BOOST_TEST_INVOKE_IF_N_ARGS'
            F1,                                                     \
            ^
/opt/local/include/boost/preprocessor/control/iif.hpp:18:57: note: expanded from macro 'BOOST_PP_IIF'
#    define BOOST_PP_IIF(bit, t, f) BOOST_PP_IIF_I(bit, t, f)
                                                        ^
note: (skipping 8 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
/opt/local/include/boost/config/suffix.hpp:545:31: note: expanded from macro 'BOOST_DO_JOIN'
#define BOOST_DO_JOIN( X, Y ) BOOST_DO_JOIN2(X,Y)
                              ^
/opt/local/include/boost/config/suffix.hpp:546:32: note: expanded from macro 'BOOST_DO_JOIN2'
#define BOOST_DO_JOIN2( X, Y ) X##Y
                               ^
<scratch space>:85:1: note: expanded from here
my_test_invoker
^
input_line_6:2:34: error: function definition is not allowed here
 BOOST_AUTO_TEST_CASE( my_test ) {
                                 ^