X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fdata%2Fcase.c;h=98de9ec6a1eab70fdd6bd1f52d7558e9ffee842a;hb=a37754c18dee3d5941e5fe041b2c1fa1a3370157;hp=eab966b1867d3e6405fc4d5c818c4ca275a12923;hpb=a19b858e0ac3c69e4a28c0ca6d8674427268a863;p=pspp

diff --git a/src/data/case.c b/src/data/case.c
index eab966b186..98de9ec6a1 100644
--- a/src/data/case.c
+++ b/src/data/case.c
@@ -45,9 +45,6 @@ case_unshare (struct ccase *c)
 {
   struct case_data *cd;
   
-  assert (c != NULL);
-  assert (c->this == c);
-  assert (c->case_data != NULL);
   assert (c->case_data->ref_cnt > 1);
 
   cd = c->case_data;
@@ -72,7 +69,6 @@ void
 case_nullify (struct ccase *c) 
 {
   c->case_data = NULL;
-  c->this = c;
 }
 #endif /* DEBUGGING */
 
@@ -100,17 +96,10 @@ case_create (struct ccase *c, size_t value_cnt)
 void
 case_clone (struct ccase *clone, const struct ccase *orig)
 {
-  assert (orig != NULL);
-  assert (orig->this == orig);
-  assert (orig->case_data != NULL);
   assert (orig->case_data->ref_cnt > 0);
-  assert (clone != NULL);
 
   if (clone != orig) 
-    {
-      *clone = *orig;
-      clone->this = clone;
-    }
+    *clone = *orig;
   orig->case_data->ref_cnt++;
 }
 #endif /* DEBUGGING */
@@ -121,15 +110,13 @@ case_clone (struct ccase *clone, const struct ccase *orig)
 void
 case_move (struct ccase *dst, struct ccase *src) 
 {
-  assert (src != NULL);
-  assert (src->this == src);
-  assert (src->case_data != NULL);
   assert (src->case_data->ref_cnt > 0);
-  assert (dst != NULL);
-
-  *dst = *src;
-  dst->this = dst;
-  case_nullify (src);
+  
+  if (dst != src) 
+    {
+      *dst = *src;
+      case_nullify (src); 
+    }
 }
 #endif /* DEBUGGING */
 
@@ -141,7 +128,6 @@ case_destroy (struct ccase *c)
   struct case_data *cd;
   
   assert (c != NULL);
-  assert (c->this == c);
 
   cd = c->case_data;
   if (cd != NULL && --cd->ref_cnt == 0) 
@@ -183,20 +169,12 @@ case_try_create (struct ccase *c, size_t value_cnt)
   c->case_data = malloc (case_size (value_cnt));
   if (c->case_data != NULL) 
     {
-#ifdef DEBUGGING
-      c->this = c;
-#endif
       c->case_data->value_cnt = value_cnt;
       c->case_data->ref_cnt = 1;
       return 1;
     }
   else 
-    {
-#ifdef DEBUGGING
-      c->this = c;
-#endif
-      return 0;
-    }
+    return 0;
 }
 
 /* Tries to initialize CLONE as a copy of ORIG.
@@ -217,24 +195,20 @@ case_copy (struct ccase *dst, size_t dst_idx,
            const struct ccase *src, size_t src_idx,
            size_t value_cnt)
 {
-  assert (dst != NULL);
-  assert (dst->this == dst);
-  assert (dst->case_data != NULL);
   assert (dst->case_data->ref_cnt > 0);
   assert (dst_idx + value_cnt <= dst->case_data->value_cnt);
 
-  assert (src != NULL);
-  assert (src->this == src);
-  assert (src->case_data != NULL);
   assert (src->case_data->ref_cnt > 0);
-  assert (src_idx + value_cnt <= dst->case_data->value_cnt);
+  assert (src_idx + value_cnt <= src->case_data->value_cnt);
 
-  if (dst->case_data->ref_cnt > 1)
-    case_unshare (dst);
   if (dst->case_data != src->case_data || dst_idx != src_idx) 
-    memmove (dst->case_data->values + dst_idx,
-             src->case_data->values + src_idx,
-             sizeof *dst->case_data->values * value_cnt); 
+    {
+      if (dst->case_data->ref_cnt > 1)
+        case_unshare (dst);
+      memmove (dst->case_data->values + dst_idx,
+               src->case_data->values + src_idx,
+               sizeof *dst->case_data->values * value_cnt); 
+    }
 }
 #endif /* DEBUGGING */
 
@@ -246,9 +220,6 @@ void
 case_to_values (const struct ccase *c, union value *output,
                 size_t output_size UNUSED) 
 {
-  assert (c != NULL);
-  assert (c->this == c);
-  assert (c->case_data != NULL);
   assert (c->case_data->ref_cnt > 0);
   assert (output_size == c->case_data->value_cnt);
   assert (output != NULL || output_size == 0);
@@ -267,7 +238,6 @@ case_from_values (struct ccase *c, const union value *input,
                   size_t input_size UNUSED) 
 {
   assert (c != NULL);
-  assert (c->this == c);
   assert (c->case_data != NULL);
   assert (c->case_data->ref_cnt > 0);
   assert (input_size == c->case_data->value_cnt);
@@ -288,7 +258,6 @@ const union value *
 case_data (const struct ccase *c, size_t idx) 
 {
   assert (c != NULL);
-  assert (c->this == c);
   assert (c->case_data != NULL);
   assert (c->case_data->ref_cnt > 0);
   assert (idx < c->case_data->value_cnt);
@@ -304,7 +273,6 @@ double
 case_num (const struct ccase *c, size_t idx) 
 {
   assert (c != NULL);
-  assert (c->this == c);
   assert (c->case_data != NULL);
   assert (c->case_data->ref_cnt > 0);
   assert (idx < c->case_data->value_cnt);
@@ -322,7 +290,6 @@ const char *
 case_str (const struct ccase *c, size_t idx) 
 {
   assert (c != NULL);
-  assert (c->this == c);
   assert (c->case_data != NULL);
   assert (c->case_data->ref_cnt > 0);
   assert (idx < c->case_data->value_cnt);
@@ -339,7 +306,6 @@ union value *
 case_data_rw (struct ccase *c, size_t idx) 
 {
   assert (c != NULL);
-  assert (c->this == c);
   assert (c->case_data != NULL);
   assert (c->case_data->ref_cnt > 0);
   assert (idx < c->case_data->value_cnt);
@@ -405,7 +371,6 @@ const union value *
 case_data_all (const struct ccase *c) 
 {
   assert (c != NULL);
-  assert (c->this == c);
   assert (c->case_data != NULL);
   assert (c->case_data->ref_cnt > 0);
 
@@ -421,7 +386,6 @@ union value *
 case_data_all_rw (struct ccase *c) 
 {
   assert (c != NULL);
-  assert (c->this == c);
   assert (c->case_data != NULL);
   assert (c->case_data->ref_cnt > 0);