35 class ProductWeight : public PairWeight<W1, W2> {
43   typedef ProductWeight<typename W1::ReverseWeight, typename W2::ReverseWeight>
46   ProductWeight() {}  in ProductWeight()  function
48   ProductWeight(const PairWeight<W1, W2>& w) : PairWeight<W1, W2>(w) {}  in ProductWeight()  function
50   ProductWeight(W1 w1, W2 w2) : PairWeight<W1, W2>(w1, w2) {}  in ProductWeight()  function
52   static const ProductWeight<W1, W2> &Zero() {  in Zero()
53     static const ProductWeight<W1, W2> zero(PairWeight<W1, W2>::Zero());  in Zero()
57   static const ProductWeight<W1, W2> &One() {  in One()
58     static const ProductWeight<W1, W2> one(PairWeight<W1, W2>::One());  in One()
62   static const ProductWeight<W1, W2> &NoWeight() {  in NoWeight()
63     static const ProductWeight<W1, W2> no_weight(  in NoWeight()
80   ProductWeight<W1, W2> Quantize(float delta = kDelta) const {
92 inline ProductWeight<W1, W2> Plus(const ProductWeight<W1, W2> &w,  in Plus()
93                                   const ProductWeight<W1, W2> &v) {  in Plus()
94   return ProductWeight<W1, W2>(Plus(w.Value1(), v.Value1()),  in Plus()
99 inline ProductWeight<W1, W2> Times(const ProductWeight<W1, W2> &w,  in Times()
100                                    const ProductWeight<W1, W2> &v) {  in Times()
101   return ProductWeight<W1, W2>(Times(w.Value1(), v.Value1()),  in Times()
106 inline ProductWeight<W1, W2> Divide(const ProductWeight<W1, W2> &w,
107                                     const ProductWeight<W1, W2> &v,
109   return ProductWeight<W1, W2>(Divide(w.Value1(), v.Value1(), typ),