2 * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
4 * This file is part of libFirm.
6 * This file may be distributed and/or modified under the terms of the
7 * GNU General Public License version 2 as published by the Free Software
8 * Foundation and appearing in the file LICENSE.GPL included in the
9 * packaging of this file.
11 * Licensees holding valid libFirm Professional Edition licenses may use
12 * this file in accordance with the libFirm Commercial License.
13 * Agreement provided with the Software.
15 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * @brief never failing wrappers for malloc() & friends.
23 * @author Markus Armbruster
25 * @note The functions here never fail because they simply abort your
26 * program in case of an error.
28 #ifndef FIRM_ADT_XMALLOC_H
29 #define FIRM_ADT_XMALLOC_H
34 /* xmalloc() & friends. */
36 void *xmalloc(size_t size);
37 void *xrealloc(void *ptr, size_t size);
38 char *xstrdup(const char *str);
40 #define xfree(ptr) free(ptr)
43 * Allocate n objects of a certain type
45 #define XMALLOCN(type, n) ((type*)xmalloc(sizeof(type) * (n)))
48 * Allocate n objects of a certain type and zero them
50 #define XMALLOCNZ(type, n) ((type*)memset(xmalloc(sizeof(type) * (n)), 0, sizeof(type) * (n)))
53 * Allocate one object of a certain type
55 #define XMALLOC(type) XMALLOCN(type, 1)
58 * Allocate one object of a certain type and zero it
60 #define XMALLOCZ(type) XMALLOCNZ(type, 1)
63 * Reallocate n objects of a certain type
65 #define XREALLOC(ptr, type, n) ((type*)xrealloc(ptr, sizeof(type) * (n)))
68 * Allocate an object with n elements of a flexible array member
70 #define XMALLOCF(type, member, n) ((type*)xmalloc(offsetof(type, member) + sizeof(((type*)0)->member) * (n)))
73 * Allocate an object with n elements of a flexible array member and zero the
76 #define XMALLOCFZ(type, member, n) ((type*)memset(xmalloc(offsetof(type, member) + sizeof(((type*)0)->member) * (n)), 0, offsetof(type, member) + sizeof(((type*)0)->member) * (n)))
79 /* Includes for alloca() */
80 #if defined(__FreeBSD__)