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/* Obstack wrapper for GDB.
Copyright (C) 2002-2015 Free Software Foundation, Inc.
This file is part of GDB.
This program 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 3 of the License, or
(at your option) any later version.
This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */
#if !defined (GDB_OBSTACK_H)
#define GDB_OBSTACK_H 1
#include "obstack.h"
/* Utility macros - wrap obstack alloc into something more robust. */
#define OBSTACK_ZALLOC(OBSTACK,TYPE) \
((TYPE *) memset (obstack_alloc ((OBSTACK), sizeof (TYPE)), 0, sizeof (TYPE)))
#define OBSTACK_CALLOC(OBSTACK,NUMBER,TYPE) \
((TYPE *) memset (obstack_alloc ((OBSTACK), (NUMBER) * sizeof (TYPE)), \
0, (NUMBER) * sizeof (TYPE)))
/* Unless explicitly specified, GDB obstacks always use xmalloc() and
xfree(). */
/* Note: ezannoni 2004-02-09: One could also specify the allocation
functions using a special init function for each obstack,
obstack_specify_allocation. However we just use obstack_init and
let these defines here do the job. While one could argue the
superiority of one approach over the other, we just chose one
throughout. */
#define obstack_chunk_alloc xmalloc
#define obstack_chunk_free xfree
#define obstack_grow_str(OBSTACK,STRING) \
obstack_grow (OBSTACK, STRING, strlen (STRING))
#define obstack_grow_str0(OBSTACK,STRING) \
obstack_grow0 (OBSTACK, STRING, strlen (STRING))
#define obstack_grow_wstr(OBSTACK, WSTRING) \
obstack_grow (OBSTACK, WSTRING, sizeof (gdb_wchar_t) * gdb_wcslen (WSTRING))
/* Concatenate NULL terminated variable argument list of `const char
*' strings; return the new string. Space is found in the OBSTACKP.
Argument list must be terminated by a sentinel expression `(char *)
NULL'. */
extern char *obconcat (struct obstack *obstackp, ...) ATTRIBUTE_SENTINEL;
/* Duplicate STRING, returning an equivalent string that's allocated on the
obstack OBSTACKP. */
extern char *obstack_strdup (struct obstack *obstackp, const char *string);
#endif
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