xmalloc.h

/*
 * This file is part of libFirm.
 * Copyright (C) 2012 University of Karlsruhe.
 */

#ifndef FIRM_ADT_XMALLOC_H
#define FIRM_ADT_XMALLOC_H

#include <stddef.h>
#include <stdlib.h>
#include <string.h>

/* Includes for alloca() */
#ifndef alloca
#   if defined(__GNUC__)
#       define alloca(x)       __builtin_alloca(x)
#   elif defined(__WIN32)
#       include <malloc.h>
#   else
#       error do not know how to get alloca
#   endif
#endif

#include "../begin.h"

FIRM_API void *xmalloc(size_t size);
FIRM_API void *xrealloc(void *ptr, size_t size);
FIRM_API char *xstrdup(const char *str);

#define XMALLOCN(type, n) ((type*)xmalloc(sizeof(type) * (n)))

#define XMALLOCNZ(type, n) ((type*)memset(xmalloc(sizeof(type) * (n)), 0, sizeof(type) * (n)))

#define XMALLOC(type) XMALLOCN(type, 1)

#define XMALLOCZ(type) XMALLOCNZ(type, 1)

#define XREALLOC(ptr, type, n) ((type*)xrealloc(ptr, sizeof(type) * (n)))

#define XMALLOCF(type, member, n) ((type*)xmalloc(offsetof(type, member) + sizeof(*((type*)0)->member) * (n)))

#define XMALLOCFZ(type, member, n) ((type*)memset(XMALLOCF(type, member, (n)), 0, offsetof(type, member) + sizeof(*((type*)0)->member) * (n)))

#define ALLOCAN(type, n) ((type*)alloca(sizeof(type) * (n)))

#define ALLOCANZ(type, n) ((type*)memset((type*)alloca(sizeof(type) * (n)), 0, sizeof(type) * (n)))

#define ALLOCAF(type, member, n) ((type*)alloca(offsetof(type, member) + sizeof(*((type*)0)->member) * (n)))

#define OALLOCN(obst, type, n) ((type*)obstack_alloc((obst), sizeof(type) * (n)))

#define OALLOCNZ(obst, type, n) ((type*)memset(OALLOCN((obst), type, (n)), 0, sizeof(type) * (n)))

#define OALLOC(obst, type) OALLOCN(obst, type, 1)

#define OALLOCZ(obst, type) OALLOCNZ(obst, type, 1)

#define OALLOCF(obst, type, member, n) ((type*)obstack_alloc((obst), offsetof(type, member) + sizeof(*((type*)0)->member) * (n)))

#define OALLOCFZ(obst, type, member, n) ((type*)memset(OALLOCF((obst), type, member, (n)), 0, offsetof(type, member) + sizeof(*((type*)0)->member) * (n)))

#include "../end.h"

#endif