20   Frequency = Prob.scale(Frequency);  in operator *=()
25   BlockFrequency Freq(Frequency);  in operator *()
31   Frequency = Prob.scaleByInverse(Frequency);  in operator /=()
36   BlockFrequency Freq(Frequency);  in operator /()
42   uint64_t Before = Freq.Frequency;  in operator +=()
43   Frequency += Freq.Frequency;  in operator +=()
46   if (Frequency < Before)  in operator +=()
47     Frequency = UINT64_MAX;  in operator +=()
53   BlockFrequency NewFreq(Frequency);  in operator +()
60   if (Frequency <= Freq.Frequency)  in operator -=()
61     Frequency = 0;  in operator -=()
63     Frequency -= Freq.Frequency;  in operator -=()
68   BlockFrequency NewFreq(Frequency);  in operator -()
75   assert(Frequency != 0);  in operator >>=()
78   Frequency >>= count;  in operator >>=()
81   Frequency |= Frequency == 0;  in operator >>=()