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Fix compilation when building with msvc's new preprocessor #667

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Mar 25, 2025
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Fix compilation when building with msvc's new preprocessor #667

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35 changes: 18 additions & 17 deletions include/boost/multiprecision/cpp_int/literals.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -249,29 +249,30 @@ constexpr typename boost::multiprecision::literals::detail::unsigned_cpp_int_lit
return boost::multiprecision::literals::detail::make_backend_from_pack<pt, typename boost::multiprecision::literals::detail::unsigned_cpp_int_literal_result_type<static_cast<unsigned>((sizeof...(STR)) - 2u)>::backend_type>::value;
}

#define BOOST_MP_DEFINE_SIZED_CPP_INT_LITERAL(Bits) \
template <char... STR> \
constexpr boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<Bits, Bits, boost::multiprecision::signed_magnitude, boost::multiprecision::unchecked, void> > operator BOOST_JOIN(""_cppi, Bits)() \
{ \
using pt = typename boost::multiprecision::literals::detail::make_packed_value_from_str<STR...>::type; \
return boost::multiprecision::literals::detail::make_backend_from_pack< \
pt, \
boost::multiprecision::backends::cpp_int_backend<Bits, Bits, boost::multiprecision::signed_magnitude, boost::multiprecision::unchecked, void> >::value; \
} \
template <char... STR> \
constexpr boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<Bits, Bits, boost::multiprecision::unsigned_magnitude, boost::multiprecision::unchecked, void> > operator BOOST_JOIN(""_cppui, Bits)() \
{ \
using pt = typename boost::multiprecision::literals::detail::make_packed_value_from_str<STR...>::type; \
return boost::multiprecision::literals::detail::make_backend_from_pack< \
pt, \
boost::multiprecision::backends::cpp_int_backend<Bits, Bits, boost::multiprecision::unsigned_magnitude, boost::multiprecision::unchecked, void> >::value; \
#define BOOST_MP_LIT(P, N) BOOST_JOIN(operator "", BOOST_JOIN(P, N))
#define BOOST_MP_DEFINE_SIZED_CPP_INT_LITERAL(Bits) \
template <char... STR> \
constexpr boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<Bits, Bits, boost::multiprecision::signed_magnitude, boost::multiprecision::unchecked, void> > BOOST_MP_LIT(_cppi, Bits)() \
{ \
using pt = typename boost::multiprecision::literals::detail::make_packed_value_from_str<STR...>::type; \
return boost::multiprecision::literals::detail::make_backend_from_pack< \
pt, \
boost::multiprecision::backends::cpp_int_backend<Bits, Bits, boost::multiprecision::signed_magnitude, boost::multiprecision::unchecked, void> >::value; \
} \
template <char... STR> \
constexpr boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<Bits, Bits, boost::multiprecision::unsigned_magnitude, boost::multiprecision::unchecked, void> > BOOST_MP_LIT(_cppui, Bits)() \
{ \
using pt = typename boost::multiprecision::literals::detail::make_packed_value_from_str<STR...>::type; \
return boost::multiprecision::literals::detail::make_backend_from_pack< \
pt, \
boost::multiprecision::backends::cpp_int_backend<Bits, Bits, boost::multiprecision::unsigned_magnitude, boost::multiprecision::unchecked, void> >::value; \
}

BOOST_MP_DEFINE_SIZED_CPP_INT_LITERAL(128)
BOOST_MP_DEFINE_SIZED_CPP_INT_LITERAL(256)
BOOST_MP_DEFINE_SIZED_CPP_INT_LITERAL(512)
BOOST_MP_DEFINE_SIZED_CPP_INT_LITERAL(1024)

#undef BOOST_MP_LIT
} // namespace literals

//
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