xor_combine Class

2013-02-24

生成组合的分布。

template<class Engine1, int S1,
   class Engine2, int S2>
   class xor_combine {
public:
   typedef Engine1 base1_type;
   typedef Engine2 base2_type;
   typedef typename Engine1::result_type;
   static const int shift1 = S1;
   static const int shift2 = S2;
   xor_combine();
   xor_combine(const base1_type& eng1, const base2_type& eng2);
   template<class Gen>
      xor_combine(Gen& gen);
   xor_combine(const xor_combine& right);
   xor_combine(xor_combine& right);
   void seed();
   template<class Gen>
      void seed(Gen& gen);
   const base1_type& base1() const;
   const base2_type& base2() const;
   result_type min() const;
   result_type max() const;
   result_type operator()();
private:
   base1_type stored_eng1;     // exposition only
   base2_type stored_eng2;     // exposition only
   };