home *** CD-ROM | disk | FTP | other *** search
- /* Implement a vector type that indicates its used size and allocated size.
- Copyright (C) 1992 Free Software Foundation, Inc.
-
- This file is part of GNU CC.
-
- GNU CC is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- GNU CC is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNU CC; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /* As a special exception, if you link this library with files
- compiled with GCC to produce an executable, this does not cause
- the resulting executable to be covered by the GNU General Public License.
- This exception does not however invalidate any other reasons why
- the executable file might be covered by the GNU General Public License. */
-
-
- #ifndef __record_INCLUDE_GNU
- #define __record_INCLUDE_GNU
-
- #include "assert.h"
-
-
- /* Structure to hold records. */
- struct record
- {
- unsigned int capacity;
- unsigned int used;
- void **records;
- };
-
-
- extern void *__objc_xmalloc (unsigned int);
- extern void *__objc_xcalloc (unsigned int, unsigned int);
- extern void *__objc_xrealloc (void *, unsigned int);
-
- /* Allocate, initialize and return a new record structure. */
-
- static inline struct record *
- record_new ()
- {
- struct record *record;
-
- record = (struct record *) __objc_xcalloc (1, sizeof (struct record));
- record->capacity = 8;
- record ->records
- = (void **) __objc_xcalloc (record->capacity, sizeof (void *));
-
- return record;
- }
-
-
- /* Delete the record. */
- static inline void
- record_delete (struct record *record)
- {
- free (record->records);
- free (record);
- }
-
-
- /* Return the number of entries in the record. */
-
- static inline unsigned int
- record_entries (struct record *record)
- {
- return record->used;
- }
-
-
- /* Return the capacity of the record. */
-
- static inline unsigned int
- record_capacity (struct record *record)
- {
- return record->capacity;
- }
-
-
- /* Store an entry at the specified record location. */
-
- static inline void
- record_store_at (unsigned int i, void *value, struct record *record)
- {
- assert (i);
- assert (i <= record_entries (record));
-
- record->records[i] = value;
- }
-
-
- /* Make a record entry. Expand the record's size if full. */
-
- static inline void
- record_store (void *value, struct record *record)
- {
- ++record->used;
- if (record_entries (record) == record_capacity (record))
- {
- record->capacity *= 2;
- record->records
- = (void **) __objc_xrealloc (record->records,
- record_capacity (record) * sizeof (void *));
- }
- record_store_at (record_entries (record), value, record);
- }
-
-
- /* Get a value from the record. */
-
- static inline void *
- record_get (unsigned int i, struct record *record)
- {
- assert (i);
- assert (i <= record_entries (record));
- return record->records[i];
- }
-
- #endif /* not __record_INCLUDE_GNU */
-
-