NetBSD/gnu/dist/texinfo/lib/xalloc.h
wiz ccaa2ac97b Import of texinfo-4.7, as prepared by texinfo2netbsd.
Changes since 4.6:

4.7 (9 April 2004)
* Language:
  . new commands @float, @caption, @shortcaption, @listoffloats for
    initial implementation of floating material (figures, tables, etc).
    Ironically, they do not yet actually float anywhere.
  . new commands @docbook, @ifdocbook, @ifnotdocbook for conditional Docbook.
  . new commands @ordf{} and @ordm{} for Spanish feminine/masculine ordinals.
  . new commands @deftypecv[x] for class variables in typed OO languages.
  . new command @registeredsymbol for the r-in-a-circle symbol.
  . new command @headitem to make a heading row in @multitable.
  . new command @LaTeX{} for the LaTeX logo.
  . new command @comma{} to avoid comma-parsing problems.
  . @url is now a synonym for @uref; new command @indicateurl has the
    old meaning of just displaying a url as text.
  . @quotation now accepts an optional argument for labelling the text
      as a `Note', `Tip', etc.
  . @defun (et al.) heading lines can now be continued with a lone @.
  . @acronym accepts an optional argument for the meaning of the acronym.
* makeinfo:
  . New environment variable TEXINFO_OUTPUT_FORMAT determines the output
    format at runtime, if no options are specified.
  . New option --plaintext, equivalent to --no-headers with Info output.
  . All outputs:
    - sections are numbered by default.
  . Info output:
    - punctuation is inserted after @pxref and @ref, if needed to make
      cross-references valid.
    - line numbers included in index menus, so Info readers can go to
      the exact line of an entry, not just a node.  Also in plaintext output.
    - ^@^H[index^@^H] cookie included in index menus, so Info readers
      can handle the ] etc. commands better.
  . HTML output:
    - new algorithm for cross-references to other manuals, for maximum
      portability and stability.
    - include node name in <title> with split output.
    - @multicolumn fractions become percentages.
    - entities used for bullets, quotes, dashes, and others.
    - index entries are links to the exact locations.
    - <h4> and <h5> used for @sub and @subsubsections again.
    - accented dotless i supported.
  . XML output: many new tags and structure to preserve more source features.
  . Docbook output:
    - upgraded DTD to Docbook XML 4.2, no longer using Docbook SGML.
    - improved translation in general, for instance:
    - line annotations and marked quotations.
* texi2dvi:
  . if available, use etex (pdfetex if --pdf) by default.
  . if the input file includes thumbpdf.sty (for LaTeX), then run thumbpdf.
  . more output if --debug.
* texinfo.tex:
  . @defun names are now printed in typewriter (instead of bold), and
    within the arguments, @var text is printed in slanted typewriter.
  . @tex code is executed inside a TeX group, so that any changes must
    be prefixed with \global (or the equivalent) to be effective.  (This
    change was actually made years ago, but never made it into the NEWS.)
* info:
  . new option --where (aka --location, -w) to report where an Info file
    would be found, instead of reading it.
  . by default, output ANSI terminal escape sequences as-is; new option
    --no-raw-escapes overrides this.
  . use the newly-generated index line numbers.
* Distribution:
  . new script gendocs.sh (not installed), for use by GNU maintainers in
    getting their manuals on the GNU web site.  Documented in
    maintain.texi (http://www.gnu.org/prep/maintain_toc.html).
  . Most code uses ANSI C prototypes, to some extent.
  . New translation: nb.
  . automake 1.8.3, autoconf 2.59, gettext 0.14.1.
2004-07-12 23:26:33 +00:00

90 lines
3.6 KiB
C

/* $NetBSD: xalloc.h,v 1.1.1.3 2004/07/12 23:26:56 wiz Exp $ */
/* xalloc.h -- malloc with out-of-memory checking
Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
1999, 2000, 2003 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
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef XALLOC_H_
# define XALLOC_H_
# include <stddef.h>
# 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) (void);
/* If XALLOC_FAIL_FUNC is undefined or a function that returns, this
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 two previous items. It exits with status
exit_failure (defined in exitfail.h). This is the
function to call when one wants the program to die because of a
memory allocation failure. */
extern void xalloc_die (void) ATTRIBUTE_NORETURN;
void *xmalloc (size_t s);
void *xnmalloc (size_t n, size_t s);
void *xzalloc (size_t s);
void *xcalloc (size_t n, size_t s);
void *xrealloc (void *p, size_t s);
void *xnrealloc (void *p, size_t n, size_t s);
void *x2realloc (void *p, size_t *pn);
void *x2nrealloc (void *p, size_t *pn, size_t s);
void *xclone (void const *p, size_t s);
char *xstrdup (const char *str);
/* Return 1 if an array of N objects, each of size S, cannot exist due
to size arithmetic overflow. S must be positive and N must be
nonnegative. This is a macro, not an inline function, so that it
works correctly even when SIZE_MAX < N.
By gnulib convention, SIZE_MAX represents overflow in size
calculations, so the conservative dividend to use here is
SIZE_MAX - 1, since SIZE_MAX might represent an overflowed value.
However, malloc (SIZE_MAX) fails on all known hosts where
sizeof (ptrdiff_t) <= sizeof (size_t), so do not bother to test for
exactly-SIZE_MAX allocations on such hosts; this avoids a test and
branch when S is known to be 1. */
# define xalloc_oversized(n, s) \
((size_t) (sizeof (ptrdiff_t) <= sizeof (size_t) ? -1 : -2) / (s) < (n))
/* These macros are deprecated; they will go away soon, and are retained
temporarily only to ease conversion to the functions described above. */
# define CCLONE(p, n) xclone (p, (n) * sizeof *(p))
# define CLONE(p) xclone (p, sizeof *(p))
# define NEW(type, var) type *var = xmalloc (sizeof (type))
# define XCALLOC(type, n) xcalloc (n, sizeof (type))
# define XMALLOC(type, n) xnmalloc (n, sizeof (type))
# define XREALLOC(p, type, n) xnrealloc (p, n, sizeof (type))
# define XFREE(p) free (p)
#endif /* !XALLOC_H_ */