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Another try with volatile

This commit is contained in:
Milo Yip 2016-02-13 16:53:45 +08:00
parent 58d8d9ab9b
commit 98ddfacdf1
1 changed files with 10 additions and 2 deletions
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12
include/rapidjson/document.h
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@ -791,8 +791,16 @@ public:
// Checks whether a number can be losslessly converted to a double.
bool IsLosslessDouble() const {
if (!IsNumber()) return false;
if (IsUint64()) return static_cast<volatile uint64_t>(static_cast<volatile double>(GetUint64())) == GetUint64();
if (IsInt64()) return static_cast<volatile int64_t>(static_cast<volatile double>(GetInt64())) == GetInt64();
if (IsUint64()) {
uint64_t u = GetUint64();
volatile double d = static_cast<double>(u);
return static_cast<uint64_t>(d) == u;
}
if (IsInt64()) {
int64_t i = GetInt64();
volatile double d = static_cast<double>(i);
return static_cast< int64_t>(d) == i;
}
return true; // double, int, uint are always lossless
}