barvinok/evalue.h

   1 #ifndef EVALUE_H
   2 #define EVALUE_H
   3
   4 #include <barvinok/polylib.h>
   5
   6 #if defined(__cplusplus)
   7 extern "C" {
   8 #endif
   9
  10 #define polynomial new_polynomial
  11 #define periodic new_periodic
  12 #define evector new_evector
  13 #define enode_type new_enode_type
  14 #define enode_node new_enode_node
  15 #define _enumeration _new_enumeration
  16 #define Enumeration _new_Enumeration
  17 #define enode _new_enode
  18 #define _enode _new__enode
  19 #define evalue _new_evalue
  20 #define _evalue _new__evalue
  21 #define eadd _new_eadd
  22 #define ecopy _new_ecopy
  23 #define new_enode _new_new_enode
  24 #define free_evalue_refs _new_free_evalue_refs
  25 #define print_evalue _new_print_evalue
  26 #define print_enode _new_print_enode
  27 #define reduce_evalue _new_reduce
  28 #define compute_evalue _new_compute_evalue
  29 #define compute_poly _new_compute_poly
  30 #define in_domain _new_in_domain
  31 #define Enumeration_Free _new_Enumeration_Free
  32 #define evalue_div _new_evalue_div
  33
  34 typedef enum { polynomial, periodic, evector, fractional, relation,
  35                partition, flooring } enode_type;
  36
  37 typedef struct _evalue {
  38   Value d;              /* denominator */
  39   union {
  40     Value n;            /* numerator (if denominator > 0) */
  41     struct _enode *p;   /* pointer   (if denominator == 0) */
  42     Polyhedron *D;      /* domain    (if denominator == -1) */
  43   } x;
  44 } evalue;
  45
  46 #define EVALUE_DOMAIN(ev)       ((ev).x.D)
  47 #define EVALUE_SET_DOMAIN(ev, D)                \
  48     do {                                        \
  49         value_set_si((ev).d, -1);               \
  50         EVALUE_DOMAIN(ev) = D;                  \
  51     } while(0)
  52 #define EVALUE_IS_DOMAIN(ev)    (value_mone_p((ev).d))
  53
  54 #define EVALUE_IS_ZERO(ev)      (value_pos_p((ev).d) && value_zero_p((ev).x.n))
  55 #define EVALUE_IS_ONE(ev)       (value_one_p((ev).d) && value_one_p((ev).x.n))
  56
  57 #define EVALUE_IS_NAN(ev)       (value_cmp_si((ev).d, -2) == 0)
  58
  59 typedef struct _enode {
  60   enode_type type;      /* polynomial or periodic or evector */
  61   int size;             /* number of attached pointers */
  62   int pos;              /* parameter position */
  63   evalue arr[1];        /* array of rational/pointer */
  64 } enode;
  65
  66 typedef struct _enumeration {
  67
  68   Polyhedron *ValidityDomain;    /* contraints on the parameters     */
  69   evalue EP;                     /* dimension = combined space       */
  70   struct _enumeration *next;     /* Ehrhart Polynomial, corresponding
  71                                     to parameter values inside the
  72                                     domain ValidityDomain below      */
  73 } Enumeration;
  74
  75
  76 void evalue_set_si(evalue *ev, int n, int d);
  77 void evalue_set(evalue *ev, Value n, Value d);
  78 void evalue_copy(evalue *dst, const evalue *src);
  79 evalue *evalue_dup(const evalue *e);
  80 evalue *evalue_zero();
  81 evalue *evalue_nan();
  82 evalue *evalue_var(int var);
  83 void evalue_free(evalue *e);
  84 enode *new_enode(enode_type type,int size,int pos);
  85 enode *ecopy(enode *e);
  86 int eequal(const evalue *e1, const evalue *e2);
  87 void free_evalue_refs(evalue *e);
  88 void print_evalue(FILE *DST, const evalue *e, const char * const *pname);
  89 void print_enode(FILE *DST, enode *p, const char *const *pname);
  90 void reduce_evalue (evalue *e);
  91 void reduce_evalue_in_domain(evalue *e, Polyhedron *D);
  92 void aep_evalue(evalue *e, int *ref);
  93 void addeliminatedparams_evalue(evalue *e,Matrix *CT);
  94 void addeliminatedparams_enum(evalue *e, Matrix *CT, Polyhedron *CEq,
  95                               unsigned MaxRays, unsigned nparam);
  96 void eadd(const evalue *e1, evalue *res);
  97 void emul(const evalue *e1, evalue *res);
  98 void emask(evalue *mask, evalue *res);
  99 int in_domain(Polyhedron *P, Value *list_args);
 100 double compute_evalue(const evalue *e, Value *list_args);
 101 Value *compute_poly(Enumeration *en,Value *list_args);
 102 evalue *evalue_eval(const evalue *e, Value *values);
 103 void evalue_mod2table(evalue *ev, int nparam);
 104 void evalue_mod2relation(evalue *e);
 105 void evalue_combine(evalue *e);
 106 void evalue_range_reduction(evalue *e);
 107 int evalue_range_reduction_in_domain(evalue *e, Polyhedron *D);
 108 size_t evalue_size(evalue *e);
 109 size_t domain_size(Polyhedron *D);
 110 Enumeration* partition2enumeration(evalue *EP);
 111 void evalue_frac2floor(evalue *e);
 112 int evalue_frac2floor_in_domain(evalue *e, Polyhedron *D);
 113 void evalue_frac2floor2(evalue *e, int shift);
 114 int evalue_frac2floor_in_domain3(evalue *e, Polyhedron *D, int shift);
 115 void evalue_frac2polynomial(evalue *e, int sign, unsigned MaxRays);
 116 evalue *esum(evalue *E, int nvar);
 117 evalue *evalue_sum(evalue *E, int nvar, unsigned MaxRays);
 118 void eor(evalue *e1, evalue *res);
 119 void evalue_denom(const evalue *e, Value *d);
 120 void evalue_div(evalue *e, Value n);
 121 void evalue_mul(evalue *e, Value n);
 122 void evalue_mul_div(evalue *e, Value n, Value d);
 123 void evalue_negate(evalue *e);
 124 void evalue_add_constant(evalue *e, const Value cst);
 125 void evalue_split_domains_into_orthants(evalue *e, unsigned MaxRays);
 126 void evalue_split_periods(evalue *e, int max_periods, unsigned int MaxRays);
 127 void evalue_extract_affine(const evalue *e, Value *coeff, Value *cst, Value *d);
 128 evalue *affine2evalue(Value *coeff, Value denom, int nvar);
 129 void evalue_substitute(evalue *e, evalue **subs);
 130 void evalue_backsubstitute(evalue *e, Matrix *CP, unsigned MaxRays);
 131 evalue *evalue_polynomial(Vector *c, const evalue* X);
 132 void evalue_shift_variables(evalue *e, int n);
 133
 134 struct evalue_section {
 135     Polyhedron *D;
 136     evalue *E;
 137 };
 138
 139 evalue *evalue_from_section_array(struct evalue_section *s, int n);
 140
 141 #if defined(__cplusplus)
 142 }
 143 #endif
 144
 145 #endif