49     DiyFp() : f(), e() {}  in DiyFp()
51     DiyFp(uint64_t fp, int exp) : f(fp), e(exp) {}  in DiyFp()
62             f = significand + kDpHiddenBit;  in DiyFp()
66             f = significand;  in DiyFp()
72         return DiyFp(f - rhs.f, e);
78         uint64_t l = _umul128(f, rhs.f, &h);
84         uint128 p = static_cast<uint128>(f) * static_cast<uint128>(rhs.f);
92         const uint64_t a = f >> 32;
93         const uint64_t b = f & M32;
94         const uint64_t c = rhs.f >> 32;
95         const uint64_t d = rhs.f & M32;
107         int s = static_cast<int>(clzll(f));  in Normalize()
108         return DiyFp(f << s, e - s);  in Normalize()
113         while (!(res.f & (kDpHiddenBit << 1))) {  in NormalizeBoundary()
114             res.f <<= 1;  in NormalizeBoundary()
117         res.f <<= (kDiySignificandSize - kDpSignificandSize - 2);  in NormalizeBoundary()
123         DiyFp pl = DiyFp((f << 1) + 1, e - 1).NormalizeBoundary();  in NormalizedBoundaries()
124         DiyFp mi = (f == kDpHiddenBit) ? DiyFp((f << 2) - 1, e - 2) : DiyFp((f << 1) - 1, e - 1);  in NormalizedBoundaries()
125         mi.f <<= mi.e - pl.e;  in NormalizedBoundaries()
136         RAPIDJSON_ASSERT(f <= kDpHiddenBit + kDpSignificandMask);  in ToDouble()
145         const uint64_t be = (e == kDpDenormalExponent && (f & kDpHiddenBit) == 0) ? 0 :  in ToDouble()
147         u.u64 = (f & kDpSignificandMask) | (be << kDpSignificandSize);  in ToDouble()
161     uint64_t f;  member