/* malloc.h -- header file for memory routines.  */ #ifndef _INCLUDE_MALLOC_H_#define _INCLUDE_MALLOC_H_ #include <_ansi.h>#include <sys/reent.h> #define __need_size_t#include <stddef.h> /* include any machine-specific extensions */#include <machine/malloc.h> #ifdef __cplusplusextern "C" {#endif /* This version of struct mallinfo must match the one in   libc/stdlib/mallocr.c.  */ struct mallinfo {  size_t arena;    /* total space allocated from system */  size_t ordblks;  /* number of non-inuse chunks */  size_t smblks;   /* unused -- always zero */  size_t hblks;    /* number of mmapped regions */  size_t hblkhd;   /* total space in mmapped regions */  size_t usmblks;  /* unused -- always zero */  size_t fsmblks;  /* unused -- always zero */  size_t uordblks; /* total allocated space */  size_t fordblks; /* total non-inuse space */  size_t keepcost; /* top-most, releasable (via malloc_trim) space */};	 /* The routines.  */ extern void *malloc (size_t);#ifdef __CYGWIN__#undef _malloc_r#define _malloc_r(r, s) malloc (s)#elseextern void *_malloc_r (struct _reent *, size_t);#endif extern void free (void *);#ifdef __CYGWIN__#undef _free_r#define _free_r(r, p) free (p)#elseextern void _free_r (struct _reent *, void *);#endif extern void *realloc (void *, size_t);#ifdef __CYGWIN__#undef _realloc_r#define _realloc_r(r, p, s) realloc (p, s)#elseextern void *_realloc_r (struct _reent *, void *, size_t);#endif extern void *calloc (size_t, size_t);#ifdef __CYGWIN__#undef _calloc_r#define _calloc_r(r, s1, s2) calloc (s1, s2);#elseextern void *_calloc_r (struct _reent *, size_t, size_t);#endif extern void *memalign (size_t, size_t);#ifdef __CYGWIN__#undef _memalign_r#define _memalign_r(r, s1, s2) memalign (s1, s2);#elseextern void *_memalign_r (struct _reent *, size_t, size_t);#endif extern struct mallinfo mallinfo (void);#ifdef __CYGWIN__#undef _mallinfo_r#define _mallinfo_r(r) mallinfo ()#elseextern struct mallinfo _mallinfo_r (struct _reent *);#endif extern void malloc_stats (void);#ifdef __CYGWIN__#undef _malloc_stats_r#define _malloc_stats_r(r) malloc_stats ()#elseextern void _malloc_stats_r (struct _reent *);#endif extern int mallopt (int, int);#ifdef __CYGWIN__#undef _mallopt_r#define _mallopt_r(i1, i2) mallopt (i1, i2)#elseextern int _mallopt_r (struct _reent *, int, int);#endif extern size_t malloc_usable_size (void *);#ifdef __CYGWIN__#undef _malloc_usable_size_r#define _malloc_usable_size_r(r, p) malloc_usable_size (p)#elseextern size_t _malloc_usable_size_r (struct _reent *, void *);#endif /* These aren't too useful on an embedded system, but we define them   anyhow.  */ extern void *valloc (size_t);#ifdef __CYGWIN__#undef _valloc_r#define _valloc_r(r, s) valloc (s)#elseextern void *_valloc_r (struct _reent *, size_t);#endif extern void *pvalloc (size_t);#ifdef __CYGWIN__#undef _pvalloc_r#define _pvalloc_r(r, s) pvalloc (s)#elseextern void *_pvalloc_r (struct _reent *, size_t);#endif extern int malloc_trim (size_t);#ifdef __CYGWIN__#undef _malloc_trim_r#define _malloc_trim_r(r, s) malloc_trim (s)#elseextern int _malloc_trim_r (struct _reent *, size_t);#endif extern void __malloc_lock(struct _reent *); extern void __malloc_unlock(struct _reent *); /* A compatibility routine for an earlier version of the allocator.  */ extern void mstats (char *);#ifdef __CYGWIN__#undef _mstats_r#define _mstats_r(r, p) mstats (p)#elseextern void _mstats_r (struct _reent *, char *);#endif /* SVID2/XPG mallopt options */ #define M_MXFAST  1    /* UNUSED in this malloc */#define M_NLBLKS  2    /* UNUSED in this malloc */#define M_GRAIN   3    /* UNUSED in this malloc */#define M_KEEP    4    /* UNUSED in this malloc */ /* mallopt options that actually do something */  #define M_TRIM_THRESHOLD    -1#define M_TOP_PAD           -2#define M_MMAP_THRESHOLD    -3 #define M_MMAP_MAX          -4 #ifndef __CYGWIN__/* Some systems provide this, so do too for compatibility.  */extern void cfree (void *);#endif /* __CYGWIN__ */ #ifdef __cplusplus}#endif #endif /* _INCLUDE_MALLOC_H_ */