barvinok/genfun.h

   1 #ifndef GENFUN_H
   2 #define GENFUN_H
   3
   4 #include <vector>
   5 #include <iostream>
   6 #include <gmp.h>
   7 #include <NTL/mat_ZZ.h>
   8 extern "C" {
   9 #include <polylib/polylibgmp.h>
  10 #include <barvinok/evalue.h>
  11 }
  12 #include <barvinok/NTL_QQ.h>
  13
  14 #ifdef NTL_STD_CXX
  15 using namespace NTL;
  16 #endif
  17
  18 struct short_rat {
  19     struct __short_rat_n {
  20         /* rows: terms in numerator */
  21         /* coeff has two columns: the numerator and the denominator */
  22         vec_QQ  coeff;
  23         mat_ZZ  power;
  24     } n;
  25     struct __short_rat_d {
  26         /* rows: factors in denominator */
  27         mat_ZZ  power;
  28     } d;
  29     void add(short_rat *rat);
  30     bool reduced();
  31 };
  32
  33 struct gen_fun {
  34     std::vector< short_rat * > term;
  35     Polyhedron *context;
  36
  37     void add(const QQ& c, const vec_ZZ& num, const mat_ZZ& den);
  38     /* add cn/cd times gf */
  39     void add(const QQ& c, const gen_fun *gf);
  40     void substitute(Matrix *CP);
  41     gen_fun *Hadamard_product(const gen_fun *gf, unsigned MaxRays);
  42     void add_union(gen_fun *gf, unsigned MaxRays);
  43     void shift(const vec_ZZ& offset);
  44     void divide(const vec_ZZ& power);
  45     void print(std::ostream& os, unsigned int nparam, char **param_name) const;
  46     operator evalue *() const;
  47     void coefficient(Value* params, Value* c) const;
  48     gen_fun *summate(int nvar) const;
  49     bool summate(Value *sum) const;
  50
  51     gen_fun(const gen_fun *gf) {
  52         QQ one(1, 1);
  53         context = Polyhedron_Copy(gf->context);
  54         add(one, gf);
  55     }
  56     gen_fun(Value c);
  57     gen_fun(Polyhedron *C = NULL) : context(C) {}
  58     ~gen_fun() {
  59         if (context)
  60             Polyhedron_Free(context);
  61         for (int i = 0; i < term.size(); ++i)
  62             delete term[i];
  63     }
  64 };
  65
  66 #endif