view src/strcat.c @ 5182:2e528066e2fc

Move #'sort*, #'fill, #'merge to C from cl-seq.el. lisp/ChangeLog addition: 2010-04-01 Aidan Kehoe <kehoea@parhasard.net> * cl-seq.el (fill, sort*, merge): Move these functions to fns.c. (stable-sort): Make this docstring reflect the argument names used in the #'sort* docstring. * cl-macs.el (stable-sort): Make #'stable-sort exactly equivalent to #'sort* in compiled code. * bytecomp.el (byte-compile-maybe-add-*): New macro, for functions like #'sort and #'mapcar that, to be strictly compatible, should only take two args, but in our implementation can take more, because they're aliases of #'sort* and #'mapcar*. (byte-compile-mapcar, byte-compile-sort, byte-compile-fillarray): Use this new macro. (map-into): Add a byte-compile method for #'map-into in passing. * apropos.el (apropos-print): Use #'sort* with a :key argument, now it's in C. * compat.el (extent-at): Ditto. * register.el (list-registers): Ditto. * package-ui.el (pui-list-packages): Ditto. * help.el (sorted-key-descriptions): Ditto. src/ChangeLog addition: 2010-03-31 Aidan Kehoe <kehoea@parhasard.net> * fns.c (STRING_DATA_TO_OBJECT_ARRAY) (BIT_VECTOR_TO_OBJECT_ARRAY, c_merge_predicate_key) (c_merge_predicate_nokey, list_merge, array_merge) (list_array_merge_into_list, list_list_merge_into_array) (list_array_merge_into_array, CHECK_KEY_ARGUMENT, Fmerge) (list_sort, array_sort, FsortX): Move #'sort*, #'fill, #'merge from cl-seq.el to C, extending the implementations of Fsort, Ffillarray, and merge() to do so. * keymap.c (keymap_submaps, map_keymap_sort_predicate) (describe_map_sort_predicate): Change the calling semantics of the C sort predicates to return a non-nil Lisp object if the first argument is less than the second, rather than C integers. * fontcolor-msw.c (sort_font_list_function): * fileio.c (build_annotations): * dired.c (Fdirectory_files): * abbrev.c (Finsert_abbrev_table_description): Call list_sort instead of Fsort, list_merge instead of merge() in these functions. man/ChangeLog addition: 2010-04-01 Aidan Kehoe <kehoea@parhasard.net> * lispref/lists.texi (Rearrangement): Update the documentation of #'sort here, now that it accepts any type of sequence and the KEY keyword argument. (Though this is probably now the wrong place for this function, given that.)
author Aidan Kehoe <kehoea@parhasard.net>
date Thu, 01 Apr 2010 20:22:50 +0100
parents abe6d1db359e
children 2aa9cd456ae7
line wrap: on
line source

/* Copyright (C) 1991 Free Software Foundation, Inc.
This file is part of the GNU C Library.

The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.

The GNU C Library 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
Library General Public License for more details.

You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB.  If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA.  */

/* Synched up with: Not in FSF. */

# include <config.h>
# ifndef REGISTER	/* Strictly enforced in 20.3 */
# define REGISTER
# endif

/* In HPUX 10 the strcat function references memory past the last byte of 
   the string!  This will core dump if the memory following the last byte is 
   not mapped.

   Here is a correct version from, glibc 1.09.
*/

char *strcat (char *dest, const char *src);

/* Append SRC on the end of DEST.  */
char *
strcat (char *dest, const char *src)
{
  REGISTER char *s1 = dest;
  REGISTER const char *s2 = src;
  char c;

  /* Find the end of the string.  */
  do
    c = *s1++;
  while (c != '\0');

  /* Make S1 point before the next character, so we can increment
     it while memory is read (wins on pipelined cpus).  */
  s1 -= 2;

  do
    {
      c = *s2++;
      *++s1 = c;
    }
  while (c != '\0');

  return dest;
}