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💚 add trait for 128 bit integers

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Niels Lohmann 2020-07-13 14:03:04 +02:00
parent 0f1f5052bf
commit c13ecd5344
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3 changed files with 14 additions and 6 deletions
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2
include/nlohmann/detail/conversions/from_json.hpp
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@ -34,7 +34,7 @@ void from_json(const BasicJsonType& j, typename std::nullptr_t& n)
// overloads for basic_json template parameters // overloads for basic_json template parameters
template < typename BasicJsonType, typename ArithmeticType, template < typename BasicJsonType, typename ArithmeticType,
enable_if_t < std::is_arithmetic<ArithmeticType>::value&& enable_if_t < (std::is_arithmetic<ArithmeticType>::value || is_128_bit_integral<ArithmeticType>::value)&&
!std::is_same<ArithmeticType, typename BasicJsonType::boolean_t>::value, !std::is_same<ArithmeticType, typename BasicJsonType::boolean_t>::value,
int > = 0 > int > = 0 >
void get_arithmetic_value(const BasicJsonType& j, ArithmeticType& val) void get_arithmetic_value(const BasicJsonType& j, ArithmeticType& val)

9
include/nlohmann/detail/meta/type_traits.hpp
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@ -327,10 +327,16 @@ template<typename BasicJsonType, typename ConstructibleArrayType>
struct is_constructible_array_type struct is_constructible_array_type
: is_constructible_array_type_impl<BasicJsonType, ConstructibleArrayType> {}; : is_constructible_array_type_impl<BasicJsonType, ConstructibleArrayType> {};
// true for types with up to 64 bit
template<typename NumberType> template<typename NumberType>
struct is_64_bit : std::integral_constant < bool, (sizeof(NumberType) <= 8) > struct is_64_bit : std::integral_constant < bool, (sizeof(NumberType) <= 8) >
{}; {};
// true for types with at least 64 bit that con be convert from 64 bit integers
template<typename NumberType>
struct is_128_bit_integral : std::integral_constant < bool, (((std::is_signed<NumberType>::value&& std::is_convertible<std::int64_t, NumberType>::value) || (std::is_unsigned<NumberType>::value&& std::is_convertible<std::uint64_t, NumberType>::value))&& !is_64_bit<NumberType>::value) >
{};
template<typename RealIntegerType, typename CompatibleNumberIntegerType, template<typename RealIntegerType, typename CompatibleNumberIntegerType,
typename = void> typename = void>
struct is_compatible_integer_type_impl : std::false_type {}; struct is_compatible_integer_type_impl : std::false_type {};
@ -358,8 +364,7 @@ template<typename RealIntegerType, typename CompatibleNumberIntegerType>
struct is_compatible_integer_type_impl < RealIntegerType, CompatibleNumberIntegerType, struct is_compatible_integer_type_impl < RealIntegerType, CompatibleNumberIntegerType,
enable_if_t < std::is_same<RealIntegerType, CompatibleNumberIntegerType>::value&& enable_if_t < std::is_same<RealIntegerType, CompatibleNumberIntegerType>::value&&
!std::is_integral<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_128_bit_integral<CompatibleNumberIntegerType>::value >>
!is_64_bit<RealIntegerType>::value >>
{ {
static constexpr auto value = true; static constexpr auto value = true;
}; };

9
single_include/nlohmann/json.hpp
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@ -3146,6 +3146,10 @@ template<typename NumberType>
struct is_64_bit : std::integral_constant < bool, (sizeof(NumberType) <= 8) > struct is_64_bit : std::integral_constant < bool, (sizeof(NumberType) <= 8) >
{}; {};
template<typename NumberType>
struct is_128_bit_integral : std::integral_constant < bool, (((std::is_signed<NumberType>::value&& std::is_convertible<std::int64_t, NumberType>::value) || (std::is_unsigned<NumberType>::value&& std::is_convertible<std::uint64_t, NumberType>::value))&& !is_64_bit<NumberType>::value) >
{};
template<typename RealIntegerType, typename CompatibleNumberIntegerType, template<typename RealIntegerType, typename CompatibleNumberIntegerType,
typename = void> typename = void>
struct is_compatible_integer_type_impl : std::false_type {}; struct is_compatible_integer_type_impl : std::false_type {};
@ -3173,8 +3177,7 @@ template<typename RealIntegerType, typename CompatibleNumberIntegerType>
struct is_compatible_integer_type_impl < RealIntegerType, CompatibleNumberIntegerType, struct is_compatible_integer_type_impl < RealIntegerType, CompatibleNumberIntegerType,
enable_if_t < std::is_same<RealIntegerType, CompatibleNumberIntegerType>::value&& enable_if_t < std::is_same<RealIntegerType, CompatibleNumberIntegerType>::value&&
!std::is_integral<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_128_bit_integral<CompatibleNumberIntegerType>::value >>
!is_64_bit<RealIntegerType>::value >>
{ {
static constexpr auto value = true; static constexpr auto value = true;
}; };
@ -3315,7 +3318,7 @@ void from_json(const BasicJsonType& j, typename std::nullptr_t& n)
// overloads for basic_json template parameters // overloads for basic_json template parameters
template < typename BasicJsonType, typename ArithmeticType, template < typename BasicJsonType, typename ArithmeticType,
enable_if_t < std::is_arithmetic<ArithmeticType>::value&& enable_if_t < (std::is_arithmetic<ArithmeticType>::value || is_128_bit_integral<ArithmeticType>::value)&&
!std::is_same<ArithmeticType, typename BasicJsonType::boolean_t>::value, !std::is_same<ArithmeticType, typename BasicJsonType::boolean_t>::value,
int > = 0 > int > = 0 >
void get_arithmetic_value(const BasicJsonType& j, ArithmeticType& val) void get_arithmetic_value(const BasicJsonType& j, ArithmeticType& val)