isl_multi_arith_templ.c

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/*
 * Copyright 2011      Sven Verdoolaege
 * Copyright 2012-2013 Ecole Normale Superieure
 *
 * Use of this software is governed by the MIT license
 *
 * Written by Sven Verdoolaege,
 * Ecole Normale Superieure, 45 rue d'Ulm, 75230 Paris, France
 */
 
#include <isl/space.h>
#include <isl_val_private.h>
 
#include <isl_multi_macro.h>
 
/* Add "multi2" to "multi1" and return the result.
 */
__isl_give MULTI(BASE) *FN(MULTI(BASE),add)(__isl_take MULTI(BASE) *multi1,
  __isl_take MULTI(BASE) *multi2)
{
  return FN(MULTI(BASE),bin_op)(multi1, multi2, &FN(EL,add));
}
 
/* Subtract "multi2" from "multi1" and return the result.
 */
__isl_give MULTI(BASE) *FN(MULTI(BASE),sub)(__isl_take MULTI(BASE) *multi1,
  __isl_take MULTI(BASE) *multi2)
{
  return FN(MULTI(BASE),bin_op)(multi1, multi2, &FN(EL,sub));
}
 
/* Depending on "fn", multiply or divide the elements of "multi" by "v" and
 * return the result.
 */
static __isl_give MULTI(BASE) *FN(MULTI(BASE),scale_val_fn)(
  __isl_take MULTI(BASE) *multi, __isl_take isl_val *v,
  __isl_give EL *(*fn)(__isl_take EL *el, __isl_take isl_val *v))
{
  if (!multi || !v)
    goto error;
 
  if (isl_val_is_one(v)) {
    isl_val_free(v);
    return multi;
  }
 
  if (!isl_val_is_rat(v))
    isl_die(isl_val_get_ctx(v), isl_error_invalid,
      "expecting rational factor", goto error);
 
  return FN(MULTI(BASE),fn_val)(multi, fn, v);
error:
  isl_val_free(v);
  return FN(MULTI(BASE),free)(multi);
}
 
/* Multiply the elements of "multi" by "v" and return the result.
 */
__isl_give MULTI(BASE) *FN(MULTI(BASE),scale_val)(__isl_take MULTI(BASE) *multi,
  __isl_take isl_val *v)
{
  return FN(MULTI(BASE),scale_val_fn)(multi, v, &FN(EL,scale_val));
}
 
/* Divide the elements of "multi" by "v" and return the result.
 */
__isl_give MULTI(BASE) *FN(MULTI(BASE),scale_down_val)(
  __isl_take MULTI(BASE) *multi, __isl_take isl_val *v)
{
  if (!v)
    goto error;
  if (isl_val_is_zero(v))
    isl_die(isl_val_get_ctx(v), isl_error_invalid,
      "cannot scale down by zero", goto error);
  return FN(MULTI(BASE),scale_val_fn)(multi, v, &FN(EL,scale_down_val));
error:
  isl_val_free(v);
  return FN(MULTI(BASE),free)(multi);
}
 
/* Multiply the elements of "multi" by the corresponding element of "mv"
 * and return the result.
 */
__isl_give MULTI(BASE) *FN(MULTI(BASE),scale_multi_val)(
  __isl_take MULTI(BASE) *multi, __isl_take isl_multi_val *mv)
{
  return FN(MULTI(BASE),fn_multi_val)(multi, &FN(EL,scale_val), mv);
}
 
/* Divide the elements of "multi" by the corresponding element of "mv"
 * and return the result.
 */
__isl_give MULTI(BASE) *FN(MULTI(BASE),scale_down_multi_val)(
  __isl_take MULTI(BASE) *multi, __isl_take isl_multi_val *mv)
{
  return FN(MULTI(BASE),fn_multi_val)(multi, &FN(EL,scale_down_val), mv);
}
 
/* Compute the residues of the elements of "multi" modulo
 * the corresponding element of "mv" and return the result.
 */
__isl_give MULTI(BASE) *FN(MULTI(BASE),mod_multi_val)(
  __isl_take MULTI(BASE) *multi, __isl_take isl_multi_val *mv)
{
  return FN(MULTI(BASE),fn_multi_val)(multi, &FN(EL,mod_val), mv);
}
 
/* Return the opposite of "multi".
 */
__isl_give MULTI(BASE) *FN(MULTI(BASE),neg)(__isl_take MULTI(BASE) *multi)
{
  return FN(MULTI(BASE),un_op)(multi, &FN(EL,neg));
}