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/*
* (c) Thomas Pornin 1998 - 2002
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. The name of the authors may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef UCPP__MEM__
#define UCPP__MEM__
#include <stdlib.h>
void die(void);
#if defined AUDIT || defined MEM_CHECK || defined MEM_DEBUG
void *getmem(size_t);
#else
#define getmem malloc
#endif
#if defined MEM_DEBUG
void *getmem_debug(size_t, char *, int);
#undef getmem
#define getmem(x) getmem_debug(x, __FILE__, __LINE__)
#endif
#if defined AUDIT || defined MEM_DEBUG
void freemem(void *);
#else
#define freemem free
#endif
#if defined MEM_DEBUG
void freemem_debug(void *, char *, int);
#undef freemem
#define freemem(x) freemem_debug(x, __FILE__, __LINE__)
#endif
void *incmem(void *, size_t, size_t);
char *sdup(char *);
#if defined MEM_DEBUG
void *incmem_debug(void *, size_t, size_t, char *, int);
#undef incmem
#define incmem(x, y, z) incmem_debug(x, y, z, __FILE__, __LINE__)
void report_leaks(void);
char *sdup_debug(char *, char *, int);
#define sdup(x) sdup_debug(x, __FILE__, __LINE__)
#endif
#ifdef AUDIT
void *mmv(void *, void *, size_t);
void *mmvwo(void *, void *, size_t);
#else
#define mmv memcpy
#define mmvwo memmove
#endif
/*
* this macro adds the object obj at the end of the array list, handling
* memory allocation when needed; ptr contains the number of elements in
* the array, and memg is the granularity of memory allocations (a power
* of 2 is recommanded, for optimization reasons).
*
* list and ptr may be updated, and thus need to be lvalues.
*/
#define aol(list, ptr, obj, memg) do { \
if (((ptr) % (memg)) == 0) { \
if ((ptr) != 0) { \
(list) = incmem((list), (ptr) * sizeof(obj), \
((ptr) + (memg)) * sizeof(obj)); \
} else { \
(list) = getmem((memg) * sizeof(obj)); \
} \
} \
(list)[(ptr) ++] = (obj); \
} while (0)
/*
* bol() does the same as aol(), but adds the new item at the beginning
* of the list; beware, the computational cost is greater.
*/
#define bol(list, ptr, obj, memg) do { \
if (((ptr) % (memg)) == 0) { \
if ((ptr) != 0) { \
(list) = incmem((list), (ptr) * sizeof(obj), \
((ptr) + (memg)) * sizeof(obj)); \
} else { \
(list) = getmem((memg) * sizeof(obj)); \
} \
} \
if ((ptr) != 0) \
mmvwo((list) + 1, (list), (ptr) * sizeof(obj)); \
(ptr) ++; \
(list)[0] = (obj); \
} while (0)
/*
* mbol() does the same as bol(), but adds the new item at the given
* emplacement; bol() is equivalent to mbol with 0 as last argument.
*/
#define mbol(list, ptr, obj, memg, n) do { \
if (((ptr) % (memg)) == 0) { \
if ((ptr) != 0) { \
(list) = incmem((list), (ptr) * sizeof(obj), \
((ptr) + (memg)) * sizeof(obj)); \
} else { \
(list) = getmem((memg) * sizeof(obj)); \
} \
} \
if ((ptr) > n) \
mmvwo((list) + n + 1, (list) + n, \
((ptr) - n) * sizeof(obj)); \
(ptr) ++; \
(list)[n] = (obj); \
} while (0)
/*
* this macro adds the object obj at the end of the array list, doubling
* the size of list when needed; as for aol(), ptr and list must be
* lvalues, and so must be llng
*/
#define wan(list, ptr, obj, llng) do { \
if ((ptr) == (llng)) { \
(llng) += (llng); \
(list) = incmem((list), (ptr) * sizeof(obj), \
(llng) * sizeof(obj)); \
} \
(list)[(ptr) ++] = (obj); \
} while (0)
#endif
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