X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fdictionary.c;h=f2ac187a1dcf1805a61096b7b2ba713800c61e15;hb=9b4b94c6d3b5fd98bf396e23d015380b87d2d296;hp=0f7133ecf59dd5c5e716cd21aa0515b8a18292be;hpb=312ad23d59e643e0c72e7ad684b00f3432461dee;p=pspp

diff --git a/src/dictionary.c b/src/dictionary.c
index 0f7133ecf5..f2ac187a1d 100644
--- a/src/dictionary.c
+++ b/src/dictionary.c
@@ -18,7 +18,7 @@
    02111-1307, USA. */
 
 #include <config.h>
-#include <assert.h>
+#include "error.h"
 #include <stdlib.h>
 #include "algorithm.h"
 #include "alloc.h"
@@ -236,7 +236,7 @@ dict_create_var (struct dictionary *d, const char *name, int width)
   v->fv = d->next_value_idx;
   v->nv = width == 0 ? 1 : DIV_RND_UP (width, 8);
   v->init = 1;
-  v->reinit = name[0] != '#';
+  v->reinit = dict_class_from_id (name) != DC_SCRATCH;
   v->miss_type = MISSING_NONE;
   if (v->type == NUMERIC)
     {
@@ -250,6 +250,7 @@ dict_create_var (struct dictionary *d, const char *name, int width)
       v->print.w = v->width;
       v->print.d = 0;
     }
+  v->write = v->print;
   v->val_labs = val_labs_create (v->width);
   v->label = NULL;
 
@@ -320,6 +321,7 @@ dict_rename_var (struct dictionary *d, struct variable *v,
   assert (v != NULL);
   assert (new_name != NULL);
   assert (strlen (new_name) >= 1 && strlen (new_name) <= 8);
+  assert (dict_contains_var (d, v));
 
   if (!strcmp (v->name, new_name))
     return;
@@ -366,7 +368,7 @@ dict_contains_var (const struct dictionary *d, const struct variable *v)
   assert (d != NULL);
   assert (v != NULL);
 
-  return dict_lookup_var (d, v->name) == v;
+  return v->index >= 0 && v->index < d->var_cnt && d->var[v->index] == v;
 }
 
 /* Compares two double pointers to variables, which should point
@@ -652,21 +654,70 @@ dict_get_case_size (const struct dictionary *d)
   return sizeof (union value) * dict_get_next_value_idx (d);
 }
 
-/* Reassigns values in dictionary D so that fragmentation is
-   eliminated. */
+/* Deletes scratch variables in dictionary D and reassigns values
+   so that fragmentation is eliminated. */
 void
 dict_compact_values (struct dictionary *d) 
 {
   size_t i;
 
   d->next_value_idx = 0;
+  for (i = 0; i < d->var_cnt; )
+    {
+      struct variable *v = d->var[i];
+
+      if (dict_class_from_id (v->name) != DC_SCRATCH) 
+        {
+          v->fv = d->next_value_idx;
+          d->next_value_idx += v->nv;
+          i++;
+        }
+      else
+        dict_delete_var (default_dict, v);
+    }
+}
+
+/* Returns the number of values that would be used by a case if
+   dict_compact_values() were called. */
+size_t
+dict_get_compacted_value_cnt (const struct dictionary *d) 
+{
+  size_t i;
+  size_t cnt;
+
+  cnt = 0;
+  for (i = 0; i < d->var_cnt; i++)
+    if (dict_class_from_id (d->var[i]->name) != DC_SCRATCH) 
+      cnt += d->var[i]->nv;
+  return cnt;
+}
+
+/* Creates and returns an array mapping from a dictionary index
+   to the `fv' that the corresponding variable will have after
+   calling dict_compact_values().  Scratch variables receive -1
+   for `fv' because dict_compact_values() will delete them. */
+int *
+dict_get_compacted_idx_to_fv (const struct dictionary *d) 
+{
+  size_t i;
+  size_t next_value_idx;
+  int *idx_to_fv;
+  
+  idx_to_fv = xmalloc (d->var_cnt * sizeof *idx_to_fv);
+  next_value_idx = 0;
   for (i = 0; i < d->var_cnt; i++)
     {
       struct variable *v = d->var[i];
 
-      v->fv = d->next_value_idx;
-      d->next_value_idx += v->nv;
+      if (dict_class_from_id (v->name) != DC_SCRATCH) 
+        {
+          idx_to_fv[i] = next_value_idx;
+          next_value_idx += v->nv;
+        }
+      else 
+        idx_to_fv[i] = -1;
     }
+  return idx_to_fv;
 }
 
 /* Returns the SPLIT FILE vars (see cmd_split_file()).  Call