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[Language Conformance] Use constexpr restriction in jsoncpp (#1005)

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* use constexpr restriction in jsoncpp

* remove TODO comment
This commit is contained in:
dota17
2019-09-17 01:33:47 +08:00
committed by Jordan Bayles
parent 3550a0a939
commit 7ef0f9fa5b
3 changed files with 18 additions and 34 deletions
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26
include/json/value.h
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@@ -203,31 +203,33 @@ public:
static Value const& nullSingleton();
/// Minimum signed integer value that can be stored in a Json::Value.
static const LargestInt minLargestInt;
static constexpr LargestInt minLargestInt = LargestInt(~(LargestUInt(-1) / 2));
/// Maximum signed integer value that can be stored in a Json::Value.
static const LargestInt maxLargestInt;
static constexpr LargestInt maxLargestInt = LargestInt(LargestUInt(-1) / 2);
/// Maximum unsigned integer value that can be stored in a Json::Value.
static const LargestUInt maxLargestUInt;
static constexpr LargestUInt maxLargestUInt = LargestUInt(-1);
/// Minimum signed int value that can be stored in a Json::Value.
static const Int minInt;
static constexpr Int minInt = Int(~(UInt(-1) / 2));
/// Maximum signed int value that can be stored in a Json::Value.
static const Int maxInt;
static constexpr Int maxInt = Int(UInt(-1) / 2);
/// Maximum unsigned int value that can be stored in a Json::Value.
static const UInt maxUInt;
static constexpr UInt maxUInt = UInt(-1);
#if defined(JSON_HAS_INT64)
/// Minimum signed 64 bits int value that can be stored in a Json::Value.
static const Int64 minInt64;
static constexpr Int64 minInt64 = Int64(~(UInt64(-1) / 2));
/// Maximum signed 64 bits int value that can be stored in a Json::Value.
static const Int64 maxInt64;
static constexpr Int64 maxInt64 = Int64(UInt64(-1) / 2);
/// Maximum unsigned 64 bits int value that can be stored in a Json::Value.
static const UInt64 maxUInt64;
static constexpr UInt64 maxUInt64 = UInt64(-1);
#endif // defined(JSON_HAS_INT64)
/// Default precision for real value for string representation.
static const UInt defaultRealPrecision;
static constexpr UInt defaultRealPrecision = 17;
// The constant is hard-coded because some compiler have trouble
// converting Value::maxUInt64 to a double correctly (AIX/xlC).
// Assumes that UInt64 is a 64 bits integer.
static constexpr double maxUInt64AsDouble = 18446744073709551615.0;
// Workaround for bug in the NVIDIAs CUDA 9.1 nvcc compiler
// when using gcc and clang backend compilers. CZString
// cannot be defined as private. See issue #486