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view modules/zlib/zlib.c @ 4716:dca5bb2adff1
Don't cons with #'mapcar calls where the result is discarded,
decide on mapc-internal at compile time if the Common Lisp functionality is
not being used.
2009-10-12 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (mapc):
New compiler macro, use mapc-internal at
compile time if we're not using the Common Lisp functionality.
* bytecomp.el (byte-compile-mapcar, byte-compile-maplist): New.
If the return value of mapcar is being discarded, compile it to a
mapc-internal call instead, and warn, because the programmer
probably can't rely on always being compiled by an XEmacs that
does this. Similarly for maplist and mapl; and use
byte-compile-funarg for map, mapl, mapcan, mapcon.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Mon, 12 Oct 2009 17:19:52 +0100 |
| parents | 3ecd8885ac67 |
| children | 308d34e9f07d |
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/* zlib interface for XEmacs. Copyright (C) 1998 Free Software Foundation, Inc. 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: Not in FSF. */ /* Author: William Perry <wmperry@aventail.com> */ #include <emodules.h> DEFUN ("compress", Fcompress, 1, 6, 0, /* Return the compressed version of an object. OBJECT is either a string or a buffer. Optional argument LEVEL specifies how much to compress - valid range is 0 - 9. Optional arguments START and END denote buffer positions for compressing a portion of OBJECT. The optional CODING argument specifies the coding system the text is to be represented in while computing the digest. This only has meaning with MULE, and defaults to the current format of the data. If ERROR-ME-NOT is nil, report an error if the coding system can't be determined. Else assume binary coding if all else fails. */ (object, level, start, end, coding, error_me_not)) { return(Qnil); } DEFUN ("decompress", Fdecompress, 1, 5, 0, /* Uncompress an object. OBJECT is either a string or a buffer. Optional arguments START and END denote buffer positions for decompressing a portion of OBJECT. The optional CODING argument specifies the coding system the text is to be represented in while computing the digest. This only has meaning with MULE, and defaults to the current format of the data. If ERROR-ME-NOT is nil, report an error if the coding system can't be determined. Else assume binary coding if all else fails. */ (object, start, end, coding, error_me_not)) { return(Qnil); } void syms_of_zlib (void) { DEFSUBR(Fcompress); DEFSUBR(Fdecompress); } void vars_of_zlib (void) { Fprovide (intern ("zlib")); }
