src/mtLoseReferenceList.c

   1 /*
   2 ** Splint - annotation-assisted static program checker
   3 ** Copyright (C) 1994-2003 University of Virginia,
   4 **         Massachusetts Institute of Technology
   5 **
   6 ** This program is free software; you can redistribute it and/or modify it
   7 ** under the terms of the GNU General Public License as published by the
   8 ** Free Software Foundation; either version 2 of the License, or (at your
   9 ** option) any later version.
  10 **
  11 ** This program is distributed in the hope that it will be useful, but
  12 ** WITHOUT ANY WARRANTY; without even the implied warranty of
  13 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 ** General Public License for more details.
  15 **
  16 ** The GNU General Public License is available from http://www.gnu.org/ or
  17 ** the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  18 ** MA 02111-1307, USA.
  19 **
  20 ** For information on splint: info@splint.org
  21 ** To report a bug: splint-bug@splint.org
  22 ** For more information: http://www.splint.org
  23 */
  24 /*
  25 ** mtLoseReferenceList.c
  26 **
  27 ** based on list_template.c
  28 **
  29 ** where T has T_equal (or change this) and T_unparse
  30 */
  31
  32 # include "splintMacros.nf"
  33 # include "basic.h"
  34
  35 mtLoseReferenceList
  36 mtLoseReferenceList_new (void)
  37 {
  38   return mtLoseReferenceList_undefined;
  39 }
  40
  41 static /*@notnull@*/ mtLoseReferenceList
  42 mtLoseReferenceList_newEmpty (void)
  43 {
  44   mtLoseReferenceList s = (mtLoseReferenceList) dmalloc (sizeof (*s));
  45
  46   s->nelements = 0;
  47   s->nspace = mtLoseReferenceListBASESIZE;
  48   s->elements = (mtLoseReference *) dmalloc (sizeof (*s->elements) * mtLoseReferenceListBASESIZE);
  49
  50   return (s);
  51 }
  52
  53 static void
  54 mtLoseReferenceList_grow (/*@notnull@*/ mtLoseReferenceList s)
  55 {
  56   int i;
  57   mtLoseReference *newelements;
  58
  59   s->nspace += mtLoseReferenceListBASESIZE;
  60
  61   newelements = (mtLoseReference *) dmalloc (sizeof (*newelements) * (s->nelements + s->nspace));
  62
  63   if (newelements == (mtLoseReference *) 0)
  64     {
  65       llfatalerror (cstring_makeLiteral ("mtLoseReferenceList_grow: out of memory!"));
  66     }
  67
  68   for (i = 0; i < s->nelements; i++)
  69     {
  70       newelements[i] = s->elements[i];
  71     }
  72
  73   sfree (s->elements);
  74   s->elements = newelements;
  75 }
  76
  77 mtLoseReferenceList mtLoseReferenceList_single (mtLoseReference el)
  78 {
  79   mtLoseReferenceList s = mtLoseReferenceList_new ();
  80   s = mtLoseReferenceList_add (s, el);
  81   return s;
  82 }
  83
  84 mtLoseReferenceList mtLoseReferenceList_add (mtLoseReferenceList s, /*@keep@*/ mtLoseReference el)
  85 {
  86   if (!mtLoseReferenceList_isDefined (s))
  87     {
  88       s = mtLoseReferenceList_newEmpty ();
  89     }
  90
  91   if (s->nspace <= 0)
  92     {
  93       mtLoseReferenceList_grow (s);
  94     }
  95
  96   s->nspace--;
  97   s->elements[s->nelements] = el;
  98   s->nelements++;
  99
 100   return s;
 101 }
 102
 103 mtLoseReferenceList mtLoseReferenceList_prepend (mtLoseReferenceList s, mtLoseReference el)
 104 {
 105   int i;
 106
 107   if (!mtLoseReferenceList_isDefined (s))
 108     {
 109       return mtLoseReferenceList_single (el);
 110     }
 111
 112   if (s->nspace <= 0)
 113     {
 114       mtLoseReferenceList_grow (s);
 115     }
 116
 117   s->nspace--;
 118
 119   for (i = s->nelements; i > 0; i--)
 120     {
 121       s->elements[i] = s->elements [i - 1];
 122     }
 123
 124   s->elements[0] = el;
 125   s->nelements++;
 126
 127   return s;
 128 }
 129
 130 cstring
 131 mtLoseReferenceList_unparse (mtLoseReferenceList s)
 132 {
 133   return mtLoseReferenceList_unparseSep (s, cstring_makeLiteralTemp (" "));
 134 }
 135
 136 cstring
 137 mtLoseReferenceList_unparseSep (mtLoseReferenceList s, cstring sep)
 138 {
 139    cstring st = cstring_undefined;
 140
 141    if (mtLoseReferenceList_isDefined (s))
 142      {
 143        int i;
 144
 145        for (i = 0; i < s->nelements; i++)
 146          {
 147            if (i == 0)
 148              {
 149                st = mtLoseReference_unparse (s->elements[i]);
 150              }
 151            else
 152              st = message ("%q%s%q", st, sep, mtLoseReference_unparse (s->elements[i]));
 153          }
 154      }
 155
 156    return st;
 157 }
 158
 159 void
 160 mtLoseReferenceList_free (mtLoseReferenceList s)
 161 {
 162   if (mtLoseReferenceList_isDefined (s))
 163     {
 164       int i;
 165
 166       for (i = 0; i < s->nelements; i++) {
 167         mtLoseReference_free (s->elements[i]);
 168       }
 169
 170       sfree (s->elements);
 171       sfree (s);
 172     }
 173 }
 174