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view src/getpagesize.h @ 5253:b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
src/ChangeLog addition:
2010-09-01 Aidan Kehoe <kehoea@parhasard.net>
* fns.c (list_merge, list_array_merge_into_list)
(list_array_merge_into_array):
Avoid algorithmic complexity surprises when checking for
circularity in these functions.
(Freduce): Fix some formatting, in passing.
(mapcarX): Drop the SOME_OR_EVERY argument to this function;
instead, take CALLER, a symbol reflecting the Lisp-visible
function that called mapcarX(). Use CALLER with
mapping_interaction_error() when sequences are modified
illegally. Don't cons with #'some, #'every, not even a little.
(Fmapconcat, FmapcarX, Fmapvector, Fmapcan, Fmapc, Fmap)
(Fmap_into, Fsome, Fevery): Call mapcarX() with its new
arguments.
(Fmapcan): Don't unnecessarily complicate the nconc call.
(maplist): Take CALLER, a symbol reflecting the Lisp-visible
function that called maplist(), rather than having separate
arguments to indicate mapl vs. mapcon.
Avoid algorithmic complexity surprises when checking for
circularity. In #'mapcon, check a given stretch of
result for well-formedness once, which was not previously the
case, despite what the comments said.
(Fmaplist, Fmapl, Fmapcon):
Call maplist() with its new arguments.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Wed, 01 Sep 2010 12:51:32 +0100 |
| parents | aa5ed11f473b |
| children | 308d34e9f07d |
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/* This file is part of XEmacs. XEmacs 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. XEmacs 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 XEmacs; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Synched up with: FSF 19.30. */ #ifndef INCLUDED_getpagesize_h_ #define INCLUDED_getpagesize_h_ /* Emulate getpagesize on systems that lack it. */ #if 0 #ifdef __hpux #include <sys/types.h> static size_t getpagesize() { return( 4096 ); } #define HAVE_GETPAGESIZE #endif #endif #ifndef HAVE_GETPAGESIZE #ifdef HAVE_UNISTD_H #include <unistd.h> #endif #ifdef _SC_PAGESIZE #define getpagesize() sysconf(_SC_PAGESIZE) #else #include <sys/param.h> #ifdef EXEC_PAGESIZE #define getpagesize() EXEC_PAGESIZE #else #ifdef NBPG #define getpagesize() NBPG * CLSIZE #ifndef CLSIZE #define CLSIZE 1 #endif /* no CLSIZE */ #else /* no NBPG */ #if (defined (sparc) && defined (USG)) || defined (SOLARIS2) #define getpagesize() PAGESIZE #else /* not Solaris 2 */ #ifdef PAGESIZE #define getpagesize() PAGESIZE #endif #endif /* not Solaris 2 */ #endif /* no NBPG */ #endif /* no EXEC_PAGESIZE */ #endif /* _SC_PAGESIZE */ #endif /* not HAVE_GETPAGESIZE */ #endif /* INCLUDED_getpagesize_h_ */