"clang++-15"   -fvisibility-inlines-hidden -Wno-c99-extensions -std=c++2b -fPIC -pthread -O0 -fno-inline -Wall -Wextra -fvisibility=hidden -m64 --target=arm64-pc-linux -Wno-variadic-macros -DBOOST_ALL_NO_LIB=1 -DBOOST_COBALT_USE_STD_PMR=1   -I".."  -c -o "/mnt/fs1/teeks99-06/run/results/boost/bin.v2/libs/mpl/test/integral_c.test/clang-linux-15~c++2b/debug/arm_64/debug-symbols-off/threading-multi/visibility-hidden/integral_c.o" "../libs/mpl/test/integral_c.cpp"

../libs/mpl/test/integral_c.cpp:25:5: error: non-type template argument evaluates to -1, which cannot be narrowed to type 'char' [-Wc++11-narrowing]
    BOOST_PP_REPEAT(10, INTEGRAL_WRAPPER_TEST, char)
    ^
../boost/preprocessor/repetition/repeat.hpp:30:26: note: expanded from macro 'BOOST_PP_REPEAT'
# define BOOST_PP_REPEAT BOOST_PP_CAT(BOOST_PP_REPEAT_, BOOST_PP_AUTO_REC(BOOST_PP_REPEAT_P, 4))
                         ^
../boost/preprocessor/cat.hpp:22:32: note: expanded from macro 'BOOST_PP_CAT'
#    define BOOST_PP_CAT(a, b) BOOST_PP_CAT_I(a, b)
                               ^
../boost/preprocessor/cat.hpp:29:34: note: expanded from macro 'BOOST_PP_CAT_I'
#    define BOOST_PP_CAT_I(a, b) a ## b
                                 ^
note: (skipping 11 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
../boost/preprocessor/repetition/limits/repeat_256.hpp:20:36: note: expanded from macro 'BOOST_PP_REPEAT_1_3'
# define BOOST_PP_REPEAT_1_3(m, d) BOOST_PP_REPEAT_1_2(m, d) m(2, 2, d)
                                   ^
../boost/preprocessor/repetition/limits/repeat_256.hpp:19:36: note: expanded from macro 'BOOST_PP_REPEAT_1_2'
# define BOOST_PP_REPEAT_1_2(m, d) BOOST_PP_REPEAT_1_1(m, d) m(2, 1, d)
                                   ^
../boost/preprocessor/repetition/limits/repeat_256.hpp:18:41: note: expanded from macro 'BOOST_PP_REPEAT_1_1'
# define BOOST_PP_REPEAT_1_1(m, d) m(2, 0, d)
                                        ^
1 error generated.