libFirm 1.20
libfirm/adt/xmalloc.h
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00001 /*
00002  * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
00003  *
00004  * This file is part of libFirm.
00005  *
00006  * This file may be distributed and/or modified under the terms of the
00007  * GNU General Public License version 2 as published by the Free Software
00008  * Foundation and appearing in the file LICENSE.GPL included in the
00009  * packaging of this file.
00010  *
00011  * Licensees holding valid libFirm Professional Edition licenses may use
00012  * this file in accordance with the libFirm Commercial License.
00013  * Agreement provided with the Software.
00014  *
00015  * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
00016  * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
00017  * PURPOSE.
00018  */
00019 
00027 #ifndef FIRM_ADT_XMALLOC_H
00028 #define FIRM_ADT_XMALLOC_H
00029 
00030 #include <stddef.h>
00031 #include <stdlib.h>
00032 #include <string.h>
00033 
00034 /* Includes for alloca() */
00035 #ifdef _WIN32
00036 #include <malloc.h>
00037 #endif
00038 
00039 #include "../begin.h"
00040 
00052 FIRM_API void *xmalloc(size_t size);
00058 FIRM_API void *xrealloc(void *ptr, size_t size);
00064 FIRM_API char *xstrdup(const char *str);
00069 #define xfree(ptr)      free(ptr)
00070 
00074 #define XMALLOCN(type, n) ((type*)xmalloc(sizeof(type) * (n)))
00075 
00079 #define XMALLOCNZ(type, n) ((type*)memset(xmalloc(sizeof(type) * (n)), 0, sizeof(type) * (n)))
00080 
00084 #define XMALLOC(type) XMALLOCN(type, 1)
00085 
00089 #define XMALLOCZ(type) XMALLOCNZ(type, 1)
00090 
00094 #define XREALLOC(ptr, type, n) ((type*)xrealloc(ptr, sizeof(type) * (n)))
00095 
00099 #define XMALLOCF(type, member, n) ((type*)xmalloc(offsetof(type, member) + sizeof(*((type*)0)->member) * (n)))
00100 
00105 #define XMALLOCFZ(type, member, n) ((type*)memset(XMALLOCF(type, member, (n)), 0, offsetof(type, member) + sizeof(*((type*)0)->member) * (n)))
00106 
00110 #define ALLOCAN(type, n) ((type*)alloca(sizeof(type) * (n)))
00111 
00115 #define ALLOCANZ(type, n) ((type*)memset((type*)alloca(sizeof(type) * (n)), 0, sizeof(type) * (n)))
00116 
00120 #define OALLOCN(obst, type, n) ((type*)obstack_alloc((obst), sizeof(type) * (n)))
00121 
00125 #define OALLOCNZ(obst, type, n) ((type*)memset(OALLOCN((obst), type, (n)), 0, sizeof(type) * (n)))
00126 
00130 #define OALLOC(obst, type) OALLOCN(obst, type, 1)
00131 
00135 #define OALLOCZ(obst, type) OALLOCNZ(obst, type, 1)
00136 
00141 #define OALLOCF(obst, type, member, n) ((type*)obstack_alloc((obst), offsetof(type, member) + sizeof(*((type*)0)->member) * (n)))
00142 
00147 #define OALLOCFZ(obst, type, member, n) ((type*)memset(OALLOCF((obst), type, member, (n)), 0, offsetof(type, member) + sizeof(*((type*)0)->member) * (n)))
00148 
00151 #include "../end.h"
00152 
00153 #endif