Do retain/release/autorelease of contents as appropriate.

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@136 72102866-910b-0410-8b05-ffd578937521

Source/BinaryTree.m

@@ -380,6 +380,7 @@ static id nilBinaryTreeNode;
 	[theParent setRightNode:newElement.id_u];
     }
   _count++;
+  RETAIN_ELT(newElement);
   return self;
 }
 
@@ -418,6 +419,7 @@ static id nilBinaryTreeNode;
       [newElement.id_u setParentNode:[self nilNode]];
     }
   _count++;
+  RETAIN_ELT(newElement);
   return self;
 }
 
@@ -449,6 +451,7 @@ static id nilBinaryTreeNode;
       [newElement.id_u setParentNode:[self nilNode]];
     }
   _count++;
+  RETAIN_ELT(newElement);
   return self;
 }
 
@@ -523,7 +526,7 @@ static id nilBinaryTreeNode;
   [oldElement.id_u setLeftNode:[self nilNode]];
   [oldElement.id_u setParentNode:[self nilNode]];
   _count--;
-  return oldElement;
+  return AUTORELEASE_ELT(oldElement);
 }
 
 - withElementsCall: (void(*)(elt))aFunc whileTrue: (BOOL*)flag

Source/Set.m

@@ -209,6 +209,7 @@
 {
   if (coll_hash_value_for_key(_contents_hash, anElement).void_ptr_u == 0)
     coll_hash_add(&_contents_hash, anElement, 1);
+  RETAIN_ELT(anElement);
   return self;
 }
 
@@ -221,7 +222,7 @@
     coll_hash_remove(_contents_hash, oldElement);
   else
     RETURN_BY_CALLING_EXCEPTION_FUNCTION(excFunc);
-  return oldElement;
+  return AUTORELEASE_ELT(oldElement);
 }
 
 /* This must work without sending any messages to content objects */

Source/SplayTree.m

@@ -127,7 +127,7 @@
   [super removeElement:anElement];
   if (parent && parent != [self nilNode])
     [self splayNode:parent];
-  return anElement;
+  return AUTORELEASE_ELT(anElement);
 }
 
 @end