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partially revert 'fix bug for static init'

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re: 28836b8acc

A global instance of a Value (viz. 'null') was a mistake,
but dropping it breaks binary-compatibility. So we will keep it
everywhere except the one platform where it was crashing, ARM.
This commit is contained in:
Christopher Dunn
2015-01-29 14:02:56 -06:00
parent 6f6ddaa91c
commit 93f45d065c
2 changed files with 8 additions and 4 deletions
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5
src/lib_json/json_value.cpp
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@@ -29,12 +29,13 @@ namespace Json {
#if defined(__ARMEL__)
#define ALIGNAS(byte_alignment) __attribute__((aligned(byte_alignment)))
#else
// This exists for binary compatibility only. Use nullRef.
const Value Value::null;
#define ALIGNAS(byte_alignment)
#endif
static const unsigned char ALIGNAS(8) kNull[sizeof(Value)] = { 0 };
const unsigned char& kNullRef = kNull[0];
const Value& Value::null = reinterpret_cast<const Value&>(kNullRef);
const Value& Value::nullRef = null;
const Value& Value::nullRef = reinterpret_cast<const Value&>(kNullRef);
const Int Value::minInt = Int(~(UInt(-1) / 2));
const Int Value::maxInt = Int(UInt(-1) / 2);