isl_pw_morph_templ.c

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/*
 * Copyright 2010      INRIA Saclay
 *
 * Use of this software is governed by the MIT license
 *
 * Written by Sven Verdoolaege, INRIA Saclay - Ile-de-France,
 * Parc Club Orsay Universite, ZAC des vignes, 4 rue Jacques Monod,
 * 91893 Orsay, France
 */
 
__isl_give PW *FN(PW,morph_domain)(__isl_take PW *pw,
  __isl_take isl_morph *morph)
{
  int i;
  isl_size n;
  isl_ctx *ctx;
  isl_space *space;
 
  n = FN(PW,n_piece)(pw);
  if (n < 0 || !morph)
    goto error;
 
  ctx = isl_space_get_ctx(pw->dim);
  isl_assert(ctx, isl_space_is_domain_internal(morph->dom->dim, pw->dim),
    goto error);
 
  space = FN(PW,take_space)(pw);
  space = isl_space_extend_domain_with_range(
      isl_space_copy(morph->ran->dim), space);
  pw = FN(PW,restore_space)(pw, space);
 
  for (i = 0; i < n; ++i) {
    isl_set *domain;
    EL *el;
 
    domain = FN(PW,take_domain_at)(pw, i);
    domain = isl_morph_set(isl_morph_copy(morph), domain);
    pw = FN(PW,restore_domain_at)(pw, i, domain);
    el = FN(PW,take_base_at)(pw, i);
    el = FN(EL,morph_domain)(el, isl_morph_copy(morph));
    pw = FN(PW,restore_base_at)(pw, i, el);
  }
 
  isl_morph_free(morph);
 
  return pw;
error:
  FN(PW,free)(pw);
  isl_morph_free(morph);
  return NULL;
}