33 class FloatWeight {
35   FloatWeight() {}  in FloatWeight()  function
37   FloatWeight(float f) : value_(f) {}  in FloatWeight()  function
39   FloatWeight(const FloatWeight &w) : value_(w.value_) {}  in FloatWeight()  function
41   FloatWeight &operator=(const FloatWeight &w) {
68 inline bool operator==(const FloatWeight &w1, const FloatWeight &w2) {
76 inline bool operator!=(const FloatWeight &w1, const FloatWeight &w2) {
80 inline bool ApproxEqual(const FloatWeight &w1, const FloatWeight &w2,
85 inline ostream &operator<<(ostream &strm, const FloatWeight &w) {
96 inline istream &operator>>(istream &strm, FloatWeight &w) {
100     w = FloatWeight(kPosInfinity);
102     w = FloatWeight(kNegInfinity);
109       w = FloatWeight(f);
116 class TropicalWeight : public FloatWeight {
120   TropicalWeight() : FloatWeight() {}  in TropicalWeight()
122   TropicalWeight(float f) : FloatWeight(f) {}  in TropicalWeight()
124   TropicalWeight(const TropicalWeight &w) : FloatWeight(w) {}  in TropicalWeight()
182 class LogWeight : public FloatWeight {
186   LogWeight() : FloatWeight() {}  in LogWeight()
188   LogWeight(float f) : FloatWeight(f) {}  in LogWeight()
190   LogWeight(const LogWeight &w) : FloatWeight(w) {}  in LogWeight()