view src/strcat.c @ 4539:061e030e3270

Fix some bugs in load-history construction, built-in symbol file names. lib-src/ChangeLog addition: 2008-12-27 Aidan Kehoe <kehoea@parhasard.net> * make-docfile.c (main): Allow more than one -d argument, followed by a directory to change to. (put_filename): Don't strip directory information; with previous change, allows retrieval of Lisp function and variable origin files from #'built-in-symbol-file relative to lisp-directory. (scan_lisp_file): Don't add an extraneous newline after the file name, put_filename has added the newline already. lisp/ChangeLog addition: 2008-12-27 Aidan Kehoe <kehoea@parhasard.net> * loadup.el (load-history): Add the contents of current-load-list to load-history before clearing it. Move the variable declarations earlier in the file to a format understood by make-docfile.c. * custom.el (custom-declare-variable): Add the variable's symbol to the current file's load history entry correctly, don't use a cons. Eliminate a comment that we don't need to worry about, we don't need to check the `initialized' C variable in Lisp. * bytecomp.el (byte-compile-output-file-form): Merge Andreas Schwab's pre-GPLv3 GNU change of 19970831 here; treat #'custom-declare-variable correctly, generating the docstrings in a format understood by make-docfile.c. * loadhist.el (symbol-file): Correct behaviour for checking autoloaded macros and functions when supplied with a TYPE argument. Accept fully-qualified paths from #'built-in-symbol-file; if a path is not fully-qualified, return it relative to lisp-directory if the filename corresponds to a Lisp file, and relative to (concat source-directory "/src/") otherwise. * make-docfile.el (preloaded-file-list): Rationalise some let bindings a little. Use the "-d" argument to make-docfile.c to supply Lisp paths relative to lisp-directory, not absolutely. Add in loadup.el explicitly to the list of files to be processed by make-docfile.c--it doesn't make sense to add it to preloaded-file-list, since that is used for purposes of byte-compilation too. src/ChangeLog addition: 2008-12-27 Aidan Kehoe <kehoea@parhasard.net> * doc.c (Fbuilt_in_symbol_file): Return a subr's filename immediately if we've found it. Check for compiled function and compiled macro docstrings in DOC too, and return them if they exist. The branch of the if statement focused on functions may have executed, but we may still want to check variable bindings; an else clause isn't appropriate.
author Aidan Kehoe <kehoea@parhasard.net>
date Sat, 27 Dec 2008 14:05:50 +0000
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;
}