Upgrade lib/vector.c & .h

This upgrade maintains the existing vector operations, but changes the
underlying mechanisms.  It then adds a number of new functions,
extending the operations on vectors.

The "struct vector" is redefined, which affects only some code in
lib/command.c -- which pokes around inside what should be treated as a
private data structure.  Pro tem this is supported by a macro.

The constant VECTOR_MIN_SIZE has been removed -- if there is a minimum
size that should be enforced by the vector code.

New functions include:

  vector_insert_item    -- insert item, moving existing items

  vector_move_item      -- move item from place to place in vector

  vector_delete_item    -- delete item and close up gap

  vector_reverse        -- reverse order of vector

  vector_push_item      -- simple push
  vector_pop_item       -- simple pop

  vector_insert         -- insert 1 or more NULL items, moving
                           existing items
  vector_delete         -- delete 1 or more items and close up gap

  vector_bsearch        -- perform binary search on vector
  vector_sort           -- qsort vector

  vector_copy_here      -- make copy of body of vector
  vector_move_here      -- move body of vector
  vector_copy_append    -- append copy of vector to end of another
  vector_move_append    -- move body of vector to the end of another

  vector_copy_extract   -- copy part of one vector to another
  vector_move_extract   -- move part of one vector to another
  vector_copy_splice    -- copy part of one vector to replace part of
                           another, taking a copy of the replaced part
  vector_move_splice    -- move part of one vector to replace part of
                           another, taking a copy of the replaced part
  vector_copy_replace   -- copy part of one vector to replace part of
                           another
  vector_move_replace   -- move part of one vector to replace part of
                           another

  vector_discard        -- discard body of vector
  vector_chop           -- discard any unused memory in body of vector
  vector_decant         -- decant vector to new body

Other files affected:

  command.c:

    -- removal of VECTOR_MIN_SIZE
    -- use of vector_sort()
    -- use of VECTOR_INDEX to poke around inside vector
       (removing this is TODO)

  memtypes.c & memory.c

    -- updating names and comments for vectors

  vty.c

    -- removal of VECTOR_MIN_SIZE

  memory.h

    -- added SIZE(t,n) macro -- (sizeof(t) * (n))

1 files changed, 4 insertions, 2 deletions

diff --git a/lib/memory.h b/lib/memory.h
index 42eb5cae..037efef2 100644
--- a/lib/memory.h
+++ b/lib/memory.h
@@ -32,7 +32,7 @@ struct mlist {
   struct memory_list *list;
   const char *name;
 };
- 
+
 #include "lib/memtypes.h"
 
 extern struct mlist mlists[];
@@ -60,6 +60,8 @@ extern struct mlist mlists[];
 #define XSTRDUP(mtype, str)        zstrdup ((mtype), (str))
 #endif /* MEMORY_LOG */
 
+#define SIZE(t,n) (sizeof(t) * (n))
+
 /* Prototypes of memory function. */
 extern void *zmalloc (int type, size_t size);
 extern void *zcalloc (int type, size_t size);
@@ -69,7 +71,7 @@ extern char *zstrdup (int type, const char *str);
 
 extern void *mtype_zmalloc (const char *file, int line, int type, size_t size);
 
-extern void *mtype_zcalloc (const char *file, int line, int type, 
+extern void *mtype_zcalloc (const char *file, int line, int type,
                             size_t num, size_t size);
 
 extern void *mtype_zrealloc (const char *file, int line, int type, void *ptr,