Mercurial > hg > xemacs-beta
annotate src/opaque.h @ 4678:b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
lisp/ChangeLog addition:
2009-08-11 Aidan Kehoe <kehoea@parhasard.net>
* cl-extra.el (ceiling*, floor*, round*, truncate*):
Implement these in terms of the C functions; mark them as
obsolete.
(mod*, rem*): Use #'nth-value with the C functions, not #'nth with
the CL emulation functions.
man/ChangeLog addition:
2009-08-11 Aidan Kehoe <kehoea@parhasard.net>
* lispref/numbers.texi (Bigfloat Basics):
Correct this documentation (ignoring for the moment that it breaks
off in mid-sentence).
tests/ChangeLog addition:
2009-08-11 Aidan Kehoe <kehoea@parhasard.net>
* automated/lisp-tests.el:
Test the new Common Lisp-compatible rounding functions available in
C.
(generate-rounding-output): Provide a function useful for
generating the data for the rounding functions tests.
src/ChangeLog addition:
2009-08-11 Aidan Kehoe <kehoea@parhasard.net>
* floatfns.c (ROUNDING_CONVERT, CONVERT_WITH_NUMBER_TYPES)
(CONVERT_WITHOUT_NUMBER_TYPES, MAYBE_TWO_ARGS_BIGNUM)
(MAYBE_ONE_ARG_BIGNUM, MAYBE_TWO_ARGS_RATIO)
(MAYBE_ONE_ARG_RATIO, MAYBE_TWO_ARGS_BIGFLOAT)
(MAYBE_ONE_ARG_BIGFLOAT, MAYBE_EFF, MAYBE_CHAR_OR_MARKER):
New macros, used in the implementation of the rounding functions.
(ceiling_two_fixnum, ceiling_two_bignum, ceiling_two_ratio)
(ceiling_two_bigfloat, ceiling_one_ratio, ceiling_one_bigfloat)
(ceiling_two_float, ceiling_one_float, ceiling_one_mundane_arg)
(floor_two_fixnum, floor_two_bignum, floor_two_ratio)
(floor_two_bigfloat, floor_one_ratio, floor_one_bigfloat)
(floor_two_float, floor_one_mundane_arg, round_two_fixnum)
(round_two_bignum_1, round_two_bignum, round_two_ratio)
(round_one_bigfloat_1, round_two_bigfloat, round_one_ratio)
(round_one_bigfloat, round_two_float, round_one_float)
(round_one_mundane_arg, truncate_two_fixnum)
(truncate_two_bignum, truncate_two_ratio, truncate_two_bigfloat)
(truncate_one_ratio, truncate_one_bigfloat, truncate_two_float)
(truncate_one_float, truncate_one_mundane_arg):
New functions, used in the implementation of the rounding
functions.
(Fceiling, Ffloor, Fround, Ftruncate, Ffceiling, Fffloor)
(Ffround, Fftruncate):
Revise to fully support Common Lisp conventions. This means:
-- All functions have optional DIVISOR arguments
-- All functions return multiple values; see #'values
-- All functions do their arithmetic with the correct number types
according to the contamination rules.
-- #'round and #'fround always round towards the even number
in ambiguous cases.
* doprnt.c (emacs_doprnt_1):
* number.c (internal_coerce_number):
Call Ftruncate with two arguments, not one.
* floatfns.c (Ffloat):
Correct this, if NUMBER is a bignum.
* lisp.h:
Declare Ftruncate as taking two arguments.
* number.c:
Provide scratch_ratio2, init it appropriately.
* number.h:
Make scratch_ratio2 available.
* number.h (BIGFLOAT_ARITH_RETURN):
* number.h (BIGFLOAT_ARITH_RETURN1):
Correct these functions.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Tue, 11 Aug 2009 17:59:23 +0100 |
| parents | 1e7cc382eb16 |
| children | e0db3c197671 |
| rev | line source |
|---|---|
| 428 | 1 /* Opaque Lisp objects. |
| 2 Copyright (C) 1993 Sun Microsystems, Inc. | |
| 3 Copyright (C) 1995, 1996 Ben Wing. | |
| 4 | |
| 5 This file is part of XEmacs. | |
| 6 | |
| 7 XEmacs is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 9 Free Software Foundation; either version 2, or (at your option) any | |
| 10 later version. | |
| 11 | |
| 12 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 18 along with XEmacs; see the file COPYING. If not, write to | |
| 19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 20 Boston, MA 02111-1307, USA. */ | |
| 21 | |
| 22 /* Synched up with: Not in FSF. */ | |
| 23 | |
| 24 /* Written by Ben Wing, October 1993. */ | |
| 25 | |
| 440 | 26 #ifndef INCLUDED_opaque_h_ |
| 27 #define INCLUDED_opaque_h_ | |
| 428 | 28 |
| 29 typedef struct Lisp_Opaque | |
| 30 { | |
| 3017 | 31 struct LCRECORD_HEADER header; |
| 665 | 32 Bytecount size; |
| 428 | 33 max_align_t data[1]; |
| 34 } Lisp_Opaque; | |
| 35 | |
| 36 DECLARE_LRECORD (opaque, Lisp_Opaque); | |
| 37 #define XOPAQUE(x) XRECORD (x, opaque, Lisp_Opaque) | |
| 617 | 38 #define wrap_opaque(p) wrap_record (p, opaque) |
| 428 | 39 #define OPAQUEP(x) RECORDP (x, opaque) |
| 40 /* #define CHECK_OPAQUE(x) CHECK_RECORD (x, opaque) | |
| 41 Opaque pointers should never escape to the Lisp level, so | |
| 42 functions should not be doing this. */ | |
| 43 | |
| 440 | 44 /* Alternative DATA arguments to make_opaque() */ |
| 442 | 45 #define OPAQUE_CLEAR ((const void *) 0) |
| 46 #define OPAQUE_UNINIT ((const void *) -1) | |
| 428 | 47 |
| 48 #define OPAQUE_SIZE(op) ((op)->size) | |
| 49 #define OPAQUE_DATA(op) ((void *) ((op)->data)) | |
| 50 #define XOPAQUE_SIZE(op) OPAQUE_SIZE (XOPAQUE (op)) | |
| 51 #define XOPAQUE_DATA(op) OPAQUE_DATA (XOPAQUE (op)) | |
| 52 | |
| 665 | 53 Lisp_Object make_opaque (const void *data, Bytecount size); |
| 428 | 54 |
| 55 typedef struct Lisp_Opaque_Ptr | |
| 56 { | |
| 3017 | 57 struct LCRECORD_HEADER header; |
| 428 | 58 void *ptr; |
| 59 } Lisp_Opaque_Ptr; | |
| 60 | |
| 61 DECLARE_LRECORD (opaque_ptr, Lisp_Opaque_Ptr); | |
| 62 #define XOPAQUE_PTR(x) XRECORD (x, opaque_ptr, Lisp_Opaque_Ptr) | |
| 617 | 63 #define wrap_opaque_ptr(p) wrap_record (p, opaque_ptr) |
| 428 | 64 #define OPAQUE_PTRP(x) RECORDP (x, opaque_ptr) |
| 65 | |
| 1650 | 66 EXTERN_C MODULE_API Lisp_Object make_opaque_ptr (void *val); |
| 67 EXTERN_C MODULE_API void free_opaque_ptr (Lisp_Object ptr); | |
| 428 | 68 |
| 69 #define get_opaque_ptr(op) (XOPAQUE_PTR (op)->ptr) | |
| 70 #define set_opaque_ptr(op, ptr_) (XOPAQUE_PTR (op)->ptr = (ptr_)) | |
| 71 | |
| 440 | 72 #endif /* INCLUDED_opaque_h_ */ |