include/isl_constraint.h

   1 /*
   2  * Copyright 2008-2009 Katholieke Universiteit Leuven
   3  *
   4  * Use of this software is governed by the GNU LGPLv2.1 license
   5  *
   6  * Written by Sven Verdoolaege, K.U.Leuven, Departement
   7  * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
   8  */
   9
  10 #ifndef ISL_CONSTRAINT_H
  11 #define ISL_CONSTRAINT_H
  12
  13 #include "isl_div.h"
  14 #include "isl_set.h"
  15
  16 #if defined(__cplusplus)
  17 extern "C" {
  18 #endif
  19
  20 struct isl_constraint {
  21         int ref;
  22         struct isl_ctx *ctx;
  23
  24         struct isl_basic_map    *bmap;
  25         isl_int                 **line;
  26 };
  27 typedef struct isl_constraint isl_constraint;
  28
  29 __isl_give isl_constraint *isl_equality_alloc(__isl_take isl_dim *dim);
  30 __isl_give isl_constraint *isl_inequality_alloc(__isl_take isl_dim *dim);
  31 struct isl_constraint *isl_basic_set_constraint(struct isl_basic_set *bset,
  32         isl_int **line);
  33
  34 struct isl_constraint *isl_constraint_cow(struct isl_constraint *c);
  35 struct isl_constraint *isl_constraint_copy(struct isl_constraint *c);
  36 void isl_constraint_free(struct isl_constraint *c);
  37
  38 __isl_give isl_constraint *isl_basic_map_first_constraint(
  39         __isl_take isl_basic_map *bmap);
  40 __isl_give isl_constraint *isl_basic_set_first_constraint(
  41         __isl_take isl_basic_set *bset);
  42 struct isl_constraint *isl_constraint_next(struct isl_constraint *c);
  43 int isl_basic_map_foreach_constraint(__isl_keep isl_basic_map *bmap,
  44         int (*fn)(__isl_take isl_constraint *c, void *user), void *user);
  45 int isl_basic_set_foreach_constraint(__isl_keep isl_basic_set *bset,
  46         int (*fn)(__isl_take isl_constraint *c, void *user), void *user);
  47 int isl_constraint_is_equal(struct isl_constraint *constraint1,
  48                             struct isl_constraint *constraint2);
  49
  50 __isl_give isl_basic_map *isl_basic_map_add_constraint(
  51         __isl_take isl_basic_map *bmap, __isl_take isl_constraint *constraint);
  52 __isl_give isl_basic_set *isl_basic_set_add_constraint(
  53         __isl_take isl_basic_set *bset, __isl_take isl_constraint *constraint);
  54
  55 int isl_basic_set_has_defining_equality(
  56         struct isl_basic_set *bset, enum isl_dim_type type, int pos,
  57         struct isl_constraint **constraint);
  58 int isl_basic_set_has_defining_inequalities(
  59         struct isl_basic_set *bset, enum isl_dim_type type, int pos,
  60         struct isl_constraint **lower,
  61         struct isl_constraint **upper);
  62
  63 int isl_constraint_dim(struct isl_constraint *constraint,
  64         enum isl_dim_type type);
  65
  66 void isl_constraint_get_constant(__isl_keep isl_constraint *constraint,
  67         isl_int *v);
  68 void isl_constraint_get_coefficient(__isl_keep isl_constraint *constraint,
  69         enum isl_dim_type type, int pos, isl_int *v);
  70 void isl_constraint_set_constant(__isl_keep isl_constraint *constraint, isl_int v);
  71 void isl_constraint_set_coefficient(__isl_keep isl_constraint *constraint,
  72         enum isl_dim_type type, int pos, isl_int v);
  73
  74 __isl_give isl_div *isl_constraint_div(__isl_keep isl_constraint *constraint,
  75         int pos);
  76 struct isl_constraint *isl_constraint_add_div(struct isl_constraint *constraint,
  77         struct isl_div *div, int *pos);
  78
  79 void isl_constraint_clear(struct isl_constraint *constraint);
  80 struct isl_constraint *isl_constraint_negate(struct isl_constraint *constraint);
  81
  82 int isl_constraint_is_equality(struct isl_constraint *constraint);
  83
  84 __isl_give isl_basic_map *isl_basic_map_from_constraint(
  85         __isl_take isl_constraint *constraint);
  86 struct isl_basic_set *isl_basic_set_from_constraint(
  87         struct isl_constraint *constraint);
  88
  89 #if defined(__cplusplus)
  90 }
  91 #endif
  92
  93 #endif