diff options
Diffstat (limited to 'xalloc.h')
| -rw-r--r-- | xalloc.h | 56 |
1 files changed, 43 insertions, 13 deletions
@@ -1,5 +1,5 @@ /* xalloc.h -- malloc with out-of-memory checking - Copyright (C) 1990-1998, 1999 Free Software Foundation, Inc. + Copyright (C) 1990-1998, 1999, 2000, 2002 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -26,27 +26,57 @@ # endif # endif -/* Exit value when the requested amount of memory is not available. - It is initialized to EXIT_FAILURE, but the caller may set it to - some other value. */ -extern int xalloc_exit_failure; +# ifndef __attribute__ +# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8) || __STRICT_ANSI__ +# define __attribute__(x) +# endif +# endif + +# ifndef ATTRIBUTE_NORETURN +# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__)) +# endif /* If this pointer is non-zero, run the specified function upon each allocation failure. It is initialized to zero. */ -extern void (*xalloc_fail_func) (); +extern void (*xalloc_fail_func) PARAMS ((void)); /* If XALLOC_FAIL_FUNC is undefined or a function that returns, this - message must be non-NULL. It is translated via gettext. - The default value is "Memory exhausted". */ -extern char *const xalloc_msg_memory_exhausted; + message is output. It is translated via gettext. + Its value is "memory exhausted". */ +extern char const xalloc_msg_memory_exhausted[]; + +/* This function is always triggered when memory is exhausted. It is + in charge of honoring the three previous items. This is the + function to call when one wants the program to die because of a + memory allocation failure. */ +extern void xalloc_die PARAMS ((void)) ATTRIBUTE_NORETURN; void *xmalloc PARAMS ((size_t n)); void *xcalloc PARAMS ((size_t n, size_t s)); void *xrealloc PARAMS ((void *p, size_t n)); +char *xstrdup PARAMS ((const char *str)); + +# define XMALLOC(Type, N_items) ((Type *) xmalloc (sizeof (Type) * (N_items))) +# define XCALLOC(Type, N_items) ((Type *) xcalloc (sizeof (Type), (N_items))) +# define XREALLOC(Ptr, Type, N_items) \ + ((Type *) xrealloc ((void *) (Ptr), sizeof (Type) * (N_items))) + +/* Declare and alloc memory for VAR of type TYPE. */ +# define NEW(Type, Var) Type *(Var) = XMALLOC (Type, 1) + +/* Free VAR only if non NULL. */ +# define XFREE(Var) \ + do { \ + if (Var) \ + free (Var); \ + } while (0) + +/* Return a pointer to a malloc'ed copy of the array SRC of NUM elements. */ +# define CCLONE(Src, Num) \ + (memcpy (xmalloc (sizeof (*Src) * (Num)), (Src), sizeof (*Src) * (Num))) + +/* Return a malloc'ed copy of SRC. */ +# define CLONE(Src) CCLONE (Src, 1) -# define XMALLOC(Type, N_bytes) ((Type *) xmalloc (sizeof (Type) * (N_bytes))) -# define XCALLOC(Type, N_bytes) ((Type *) xcalloc (sizeof (Type), (N_bytes))) -# define XREALLOC(Ptr, Type, N_bytes) \ - ((Type *) xrealloc ((void *) (Ptr), sizeof (Type) * (N_bytes))) #endif /* !XALLOC_H_ */ |