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🧛 add trait for 128 bit integers

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This commit is contained in:
Niels Lohmann
2020-07-13 13:46:56 +02:00
parent e3aace6dac
commit 0f1f5052bf
4 changed files with 25 additions and 15 deletions
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include/nlohmann/detail/meta/type_traits.hpp
+11
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@@ -353,6 +353,17 @@ struct is_compatible_integer_type_impl <
RealLimits::is_signed == CompatibleLimits::is_signed;
};
// second version for 128 bit integers that fail std::is_integral test
template<typename RealIntegerType, typename CompatibleNumberIntegerType>
struct is_compatible_integer_type_impl < RealIntegerType, CompatibleNumberIntegerType,
enable_if_t < std::is_same<RealIntegerType, CompatibleNumberIntegerType>::value&&
!std::is_integral<CompatibleNumberIntegerType>::value&&
(std::is_unsigned<RealIntegerType>::value&& std::is_convertible<std::uint64_t, RealIntegerType>::value || !std::is_unsigned<RealIntegerType>::value&& std::is_convertible<std::int64_t, RealIntegerType>::value)&&
!is_64_bit<RealIntegerType>::value >>
{
static constexpr auto value = true;
};
template<typename RealIntegerType, typename CompatibleNumberIntegerType>
struct is_compatible_integer_type
: is_compatible_integer_type_impl<RealIntegerType,