/usr/include/meschach/meminfo.h is in libmeschach-dev 1.2b-13.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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**
** Copyright (C) 1993 David E. Steward & Zbigniew Leyk, all rights reserved.
**
** Meschach Library
**
** This Meschach Library is provided "as is" without any express
** or implied warranty of any kind with respect to this software.
** In particular the authors shall not be liable for any direct,
** indirect, special, incidental or consequential damages arising
** in any way from use of the software.
**
** Everyone is granted permission to copy, modify and redistribute this
** Meschach Library, provided:
** 1. All copies contain this copyright notice.
** 2. All modified copies shall carry a notice stating who
** made the last modification and the date of such modification.
** 3. No charge is made for this software or works derived from it.
** This clause shall not be construed as constraining other software
** distributed on the same medium as this software, nor is a
** distribution fee considered a charge.
**
***************************************************************************/
/* meminfo.h 26/08/93 */
/* changed 11/12/93 */
#ifndef MEM_INFOH
#define MEM_INFOH
/* for hash table in mem_stat.c */
/* Note: the hash size should be a prime, or at very least odd */
#define MEM_HASHSIZE 509
#define MEM_HASHSIZE_FILE "meminfo.h"
/* default: memory information is off */
/* set it to 1 if you want it all the time */
#define MEM_SWITCH_ON_DEF 0
/* available standard types */
#define TYPE_NULL (-1)
#define TYPE_MAT 0
#define TYPE_BAND 1
#define TYPE_PERM 2
#define TYPE_VEC 3
#define TYPE_IVEC 4
#ifdef SPARSE
#define TYPE_ITER 5
#define TYPE_SPROW 6
#define TYPE_SPMAT 7
#endif
#ifdef COMPLEX
#ifdef SPARSE
#define TYPE_ZVEC 8
#define TYPE_ZMAT 9
#else
#define TYPE_ZVEC 5
#define TYPE_ZMAT 6
#endif
#endif
/* structure for memory information */
typedef struct {
long bytes; /* # of allocated bytes for each type (summary) */
int numvar; /* # of allocated variables for each type */
} MEM_ARRAY;
#ifdef ANSI_C
int mem_info_is_on(void);
int mem_info_on(int sw);
long mem_info_bytes(int type,int list);
int mem_info_numvar(int type,int list);
void mem_info_file(FILE * fp,int list);
void mem_bytes_list(int type,int old_size,int new_size,
int list);
void mem_numvar_list(int type, int num, int list);
int mem_stat_reg_list(void **var,int type,int list);
int mem_stat_mark(int mark);
int mem_stat_free_list(int mark,int list);
int mem_stat_show_mark(void);
void mem_stat_dump(FILE *fp,int list);
int mem_attach_list(int list,int ntypes,char *type_names[],
int (*free_funcs[])(), MEM_ARRAY info_sum[]);
int mem_free_vars(int list);
int mem_is_list_attached(int list);
void mem_dump_list(FILE *fp,int list);
int mem_stat_reg_vars(int list,int type,...);
#else
int mem_info_is_on();
int mem_info_on();
long mem_info_bytes();
int mem_info_numvar();
void mem_info_file();
void mem_bytes_list();
void mem_numvar_list();
int mem_stat_reg_list();
int mem_stat_mark();
int mem_stat_free_list();
int mem_stat_show_mark();
void mem_stat_dump();
int mem_attach_list();
int mem_free_vars();
int mem_is_list_attached();
void mem_dump_list();
int mem_stat_reg_vars();
#endif
/* macros */
#define mem_info() mem_info_file(stdout,0)
#define mem_stat_reg(var,type) mem_stat_reg_list((void **)var,type,0)
#define MEM_STAT_REG(var,type) mem_stat_reg_list((void **)&(var),type,0)
#define mem_stat_free(mark) mem_stat_free_list(mark,0)
#define mem_bytes(type,old_size,new_size) \
mem_bytes_list(type,old_size,new_size,0)
#define mem_numvar(type,num) mem_numvar_list(type,num,0)
/* internal type */
typedef struct {
char **type_names; /* array of names of types (strings) */
int (**free_funcs)(); /* array of functions for releasing types */
unsigned ntypes; /* max number of types */
MEM_ARRAY *info_sum; /* local array for keeping track of memory */
} MEM_CONNECT;
/* max number of lists of types */
#define MEM_CONNECT_MAX_LISTS 5
#endif
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