5 * (c) 2004 Straylight/Edgeware
8 /*----- Licensing notice --------------------------------------------------*
10 * This file is part of the Python interface to Catacomb.
12 * Catacomb/Python is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * Catacomb/Python is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with Catacomb/Python; if not, write to the Free Software Foundation,
24 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
27 /*----- Header files ------------------------------------------------------*/
29 #include "catacomb-python.h"
31 /*----- Various utilities -------------------------------------------------*/
33 PyTypeObject
*field_pytype
;
34 PyTypeObject
*primefield_pytype
;
35 PyTypeObject
*niceprimefield_pytype
;
36 PyTypeObject
*binfield_pytype
;
37 PyTypeObject
*binpolyfield_pytype
;
38 PyTypeObject
*binnormfield_pytype
;
39 PyTypeObject
*fe_pytype
;
41 static PyObject
*fe_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
45 static const char *const kwlist
[] = { "x", 0 };
47 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O:fe", KWLIST
, &x
))
49 if (FE_PYCHECK(x
) && FE_F(x
) == FIELD_F(ty
)) RETURN_OBJ(x
);
50 if ((z
= getmp(x
)) == 0) return (0);
51 z
= F_IN(FIELD_F(ty
), z
, z
);
52 return (fe_pywrap((PyObject
*)ty
, z
));
55 static PyObject
*field_dopywrap(PyTypeObject
*ty
, field
*f
)
57 field_pyobj
*fobj
= newtype(ty
, 0, f
->ops
->name
);
59 fobj
->ty
.ht_type
.tp_basicsize
= sizeof(fe_pyobj
);
60 fobj
->ty
.ht_type
.tp_base
= fe_pytype
;
62 fobj
->ty
.ht_type
.tp_flags
= (Py_TPFLAGS_DEFAULT
|
64 Py_TPFLAGS_CHECKTYPES
|
66 fobj
->ty
.ht_type
.tp_alloc
= PyType_GenericAlloc
;
67 fobj
->ty
.ht_type
.tp_free
= 0;
68 fobj
->ty
.ht_type
.tp_new
= fe_pynew
;
69 typeready(&fobj
->ty
.ht_type
);
70 return ((PyObject
*)fobj
);
73 PyObject
*field_pywrap(field
*f
)
77 if (strcmp(F_NAME(f
), "prime") == 0) ty
= primefield_pytype
;
78 else if (strcmp(F_NAME(f
), "niceprime") == 0) ty
= niceprimefield_pytype
;
79 else if (strcmp(F_NAME(f
), "binpoly") == 0) ty
= binpolyfield_pytype
;
80 else if (strcmp(F_NAME(f
), "binnorm") == 0) ty
= binnormfield_pytype
;
82 return (field_dopywrap(ty
, f
));
85 field
*field_copy(field
*f
)
87 if (strcmp(F_NAME(f
), "prime") == 0)
88 f
= field_prime(f
->m
);
89 else if (strcmp(F_NAME(f
), "niceprime") == 0)
90 f
= field_niceprime(f
->m
);
91 else if (strcmp(F_NAME(f
), "binpoly") == 0)
92 f
= field_binpoly(f
->m
);
93 else if (strcmp(F_NAME(f
), "binnorm") == 0) {
94 fctx_binnorm
*fc
= (fctx_binnorm
*)f
;
95 f
= field_binnorm(f
->m
, fc
->ntop
.r
[fc
->ntop
.n
- 1]);
101 PyObject
*fe_pywrap(PyObject
*fobj
, mp
*x
)
103 fe_pyobj
*z
= PyObject_New(fe_pyobj
, (PyTypeObject
*)fobj
);
104 z
->f
= FIELD_F(fobj
);
107 return ((PyObject
*)z
);
110 static mp
*tofe(field
*f
, PyObject
*o
)
115 if (FE_F(o
) != f
&& !field_samep(FE_F(o
), f
)) return (0);
116 y
= MP_COPY(FE_X(o
));
117 } else if ((x
= tomp(o
)) != 0) {
119 y
= MP_COPY(f
->zero
);
120 else if (MP_EQ(x
, MP_ONE
))
123 y
= F_IN(f
, MP_NEW
, x
);
129 /*----- Field elements ----------------------------------------------------*/
131 static int febinop(PyObject
*x
, PyObject
*y
,
132 field
**f
, PyObject
**fobj
, mp
**xx
, mp
**yy
)
134 if (FE_PYCHECK(x
)) *fobj
= FE_FOBJ(x
);
135 else if (FE_PYCHECK(y
)) *fobj
= FE_FOBJ(y
);
138 if ((*xx
= tofe(*f
, x
)) == 0)
140 if ((*yy
= tofe(*f
, y
)) == 0) {
147 #define BINOP(name) \
148 static PyObject *fe_py##name(PyObject *x, PyObject *y) { \
152 if (febinop(x, y, &ff, &fobj, &xx, &yy)) RETURN_NOTIMPL; \
153 zz = ff->ops->name(ff, MP_NEW, xx, yy); \
154 MP_DROP(xx); MP_DROP(yy); \
155 return (fe_pywrap(fobj, zz)); \
162 static PyObject
*fe_pydiv(PyObject
*x
, PyObject
*y
)
168 if (febinop(x
, y
, &ff
, &fobj
, &xx
, &yy
)) RETURN_NOTIMPL
;
169 if (F_ZEROP(ff
, yy
)) ZDIVERR("division by zero");
170 yy
= F_INV(ff
, yy
, yy
);
171 z
= fe_pywrap(fobj
, F_MUL(ff
, MP_NEW
, xx
, yy
));
173 MP_DROP(xx
); MP_DROP(yy
);
177 static PyObject
*fe_pyexp(PyObject
*x
, PyObject
*y
, PyObject
*z
)
182 if (z
!= Py_None
|| !FE_PYCHECK(x
) || (yy
= tomp(y
)) == 0)
184 ff
= FE_F(x
); xx
= FE_X(x
); MP_COPY(xx
);
185 if (MP_NEGP(yy
) && F_ZEROP(ff
, xx
)) ZDIVERR("division by zero");
186 z
= fe_pywrap(FE_FOBJ(x
), field_exp(ff
, MP_NEW
, xx
, yy
));
188 MP_DROP(xx
); MP_DROP(yy
);
192 static PyObject
*fe_pyneg(PyObject
*x
)
194 return fe_pywrap(FE_FOBJ(x
), FE_F(x
)->ops
->neg(FE_F(x
), MP_NEW
, FE_X(x
)));
197 static PyObject
*fe_pyid(PyObject
*x
) { RETURN_OBJ(x
); }
199 static int fe_pynonzerop(PyObject
*x
) { return !F_ZEROP(FE_F(x
), FE_X(x
)); }
201 static PyObject
*fe_pyrichcompare(PyObject
*x
, PyObject
*y
, int op
)
209 if (febinop(x
, y
, &ff
, &fobj
, &xx
, &yy
)) RETURN_NOTIMPL
;
211 case Py_EQ
: b
= MP_EQ(xx
, yy
); break;
212 case Py_NE
: b
= !MP_EQ(xx
, yy
); break;
213 default: TYERR("field elements are unordered");
217 MP_DROP(xx
); MP_DROP(yy
);
221 static long fe_pyhash(PyObject
*me
)
222 { return (mphash(FE_X(me
))); }
224 static int fe_pycoerce(PyObject
**x
, PyObject
**y
)
228 if (FE_PYCHECK(*y
)) {
229 if (FE_F(*x
) != FE_F(*y
) && !field_samep(FE_F(*x
), FE_F(*y
)))
230 TYERR("field mismatch");
231 Py_INCREF(*x
); Py_INCREF(*y
);
234 if ((z
= tofe(FE_F(*x
), *y
)) != 0) {
236 *y
= fe_pywrap(FE_FOBJ(*x
), z
);
245 static PyObject
*fe_pyint(PyObject
*x
)
249 mp
*xx
= F_OUT(FE_F(x
), MP_NEW
, FE_X(x
));
250 if (!mp_tolong_checked(xx
, &l
, 0)) rc
= PyInt_FromLong(l
);
251 else rc
= mp_topylong(xx
);
256 static PyObject
*fe_pylong(PyObject
*x
)
258 mp
*xx
= F_OUT(FE_F(x
), MP_NEW
, FE_X(x
));
259 PyObject
*rc
= mp_topylong(xx
);
264 #define BASEOP(name, radix, pre) \
265 static PyObject *fe_py##name(PyObject *x) { \
266 mp *xx = F_OUT(FE_F(x), MP_NEW, FE_X(x)); \
267 PyObject *rc = mp_topystring(xx, radix, 0, pre, 0); \
272 BASEOP(hex
, 16, "0x");
275 static void fe_pydealloc(PyObject
*me
)
277 Py_DECREF(FE_FOBJ(me
));
282 #define UNOP(name, check) \
283 static PyObject *femeth_##name(PyObject *me, PyObject *arg) { \
284 field *f = FE_F(me); \
286 if (!PyArg_ParseTuple(arg, ":" #name)) return (0); \
287 if (!f->ops->name) TYERR(#name " not supported for this field"); \
289 x = f->ops->name(f, MP_NEW, x); \
290 if (!x) RETURN_NONE; \
291 return (fe_pywrap(FE_FOBJ(me), x)); \
295 UNOP(inv
, if (F_ZEROP(f
, x
)) ZDIVERR("division by zero"); )
305 static PyObject
*feget_field(PyObject
*me
, void *hunoz
)
306 { RETURN_OBJ(FE_FOBJ(me
)); }
308 static PyObject
*feget_value(PyObject
*me
, void *hunoz
)
310 mp
*x
= F_OUT(FE_F(me
), MP_NEW
, FE_X(me
));
311 if (F_TYPE(FE_F(me
)) == FTY_BINARY
)
312 return (gf_pywrap(x
));
314 return (mp_pywrap(x
));
317 static PyObject
*feget__value(PyObject
*me
, void *hunoz
)
321 if (F_TYPE(FE_F(me
)) == FTY_BINARY
)
322 return (gf_pywrap(x
));
324 return (mp_pywrap(x
));
327 static PyGetSetDef fe_pygetset
[] = {
328 #define GETSETNAME(op, name) fe##op##_##name
329 GET (field
, "X.field -> field containing X")
330 GET (value
, "X.value -> `natural' MP/GF representation of X")
331 GET (_value
, "X._value -> internal MP/GF representation of X")
336 static PyMethodDef fe_pymethods
[] = {
337 #define METHNAME(func) femeth_##func
338 METH (inv
, "X.inv() -> X^{-1}")
339 METH (sqr
, "X.sqr() -> X^2")
340 METH (sqrt
, "X.sqrt() -> sqrt(X)")
341 METH (quadsolve
, "X.quadsolve() -> Y where Y^2 + Y = X (binary only)")
342 METH (dbl
, "X.dbl() -> 2 * X (prime only)")
343 METH (tpl
, "X.tpl() -> 3 * X (prime only)")
344 METH (qdl
, "X.qdl() -> 4 * X (prime only)")
345 METH (hlv
, "X.hlv() -> X/2 (prime only)")
350 static PyNumberMethods fe_pynumber
= {
351 fe_pyadd
, /* @nb_add@ */
352 fe_pysub
, /* @nb_subtract@ */
353 fe_pymul
, /* @nb_multiply@ */
354 fe_pydiv
, /* @nb_divide@ */
355 0, /* @nb_remainder@ */
357 fe_pyexp
, /* @nb_power@ */
358 fe_pyneg
, /* @nb_negative@ */
359 fe_pyid
, /* @nb_positive@ */
360 0, /* @nb_absolute@ */
361 fe_pynonzerop
, /* @nb_nonzero@ */
368 fe_pycoerce
, /* @nb_coerce@ */
369 fe_pyint
, /* @nb_int@ */
370 fe_pylong
, /* @nb_long@ */
371 0 /* meaningless */, /* @nb_float@ */
372 fe_pyoct
, /* @nb_oct@ */
373 fe_pyhex
, /* @nb_hex@ */
375 0, /* @nb_inplace_add@ */
376 0, /* @nb_inplace_subtract@ */
377 0, /* @nb_inplace_multiply@ */
378 0, /* @nb_inplace_divide@ */
379 0, /* @nb_inplace_remainder@ */
380 0, /* @nb_inplace_power@ */
381 0, /* @nb_inplace_lshift@ */
382 0, /* @nb_inplace_rshift@ */
383 0, /* @nb_inplace_and@ */
384 0, /* @nb_inplace_xor@ */
385 0, /* @nb_inplace_or@ */
387 0, /* @nb_floor_divide@ */
388 fe_pydiv
, /* @nb_true_divide@ */
389 0, /* @nb_inplace_floor_divide@ */
390 0, /* @nb_inplace_true_divide@ */
393 static PyTypeObject fe_pytype_skel
= {
394 PyObject_HEAD_INIT(0) 0, /* Header */
395 "FE", /* @tp_name@ */
396 sizeof(fe_pyobj
), /* @tp_basicsize@ */
397 0, /* @tp_itemsize@ */
399 fe_pydealloc
, /* @tp_dealloc@ */
401 0, /* @tp_getattr@ */
402 0, /* @tp_setattr@ */
403 0, /* @tp_compare@ */
405 &fe_pynumber
, /* @tp_as_number@ */
406 0, /* @tp_as_sequence@ */
407 0, /* @tp_as_mapping@ */
408 fe_pyhash
, /* @tp_hash@ */
410 fe_pyhex
, /* @tp_str@ */
411 0, /* @tp_getattro@ */
412 0, /* @tp_setattro@ */
413 0, /* @tp_as_buffer@ */
414 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
415 Py_TPFLAGS_CHECKTYPES
|
419 "Finite field elements, abstract base class.",
421 0, /* @tp_traverse@ */
423 fe_pyrichcompare
, /* @tp_richcompare@ */
424 0, /* @tp_weaklistoffset@ */
426 0, /* @tp_iternext@ */
427 fe_pymethods
, /* @tp_methods@ */
428 0, /* @tp_members@ */
429 fe_pygetset
, /* @tp_getset@ */
432 0, /* @tp_descr_get@ */
433 0, /* @tp_descr_set@ */
434 0, /* @tp_dictoffset@ */
436 PyType_GenericAlloc
, /* @tp_alloc@ */
437 abstract_pynew
, /* @tp_new@ */
442 /*----- Fields ------------------------------------------------------------*/
444 static PyObject
*field_pyrichcompare(PyObject
*x
, PyObject
*y
, int op
)
446 int b
= field_samep(FIELD_F(x
), FIELD_F(y
));
450 default: TYERR("can't order fields");
457 static PyObject
*fmeth_rand(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
459 static const char *const kwlist
[] = { "rng", 0 };
460 grand
*r
= &rand_global
;
462 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "|O&:rand", KWLIST
,
465 return (fe_pywrap(me
, F_RAND(FIELD_F(me
), MP_NEW
, r
)));
468 static PyObject
*fmeth__adopt(PyObject
*me
, PyObject
*arg
)
471 if (!PyArg_ParseTuple(arg
, "O&:_adopt", convmp
, &xx
)) return (0);
472 return (fe_pywrap(me
, xx
));
475 static void field_pydealloc(PyObject
*me
)
477 F_DESTROY(FIELD_F(me
));
478 PyType_Type
.tp_dealloc(me
);
481 static PyObject
*fget_zero(PyObject
*me
, void *hunoz
)
482 { return (fe_pywrap(me
, MP_COPY(FIELD_F(me
)->zero
))); }
484 static PyObject
*fget_one(PyObject
*me
, void *hunoz
)
485 { return (fe_pywrap(me
, MP_COPY(FIELD_F(me
)->one
))); }
487 static PyObject
*fget_q(PyObject
*me
, void *hunoz
)
488 { return (mp_pywrap(MP_COPY(FIELD_F(me
)->q
))); }
490 static PyObject
*fget_nbits(PyObject
*me
, void *hunoz
)
491 { return (PyInt_FromLong(FIELD_F(me
)->nbits
)); }
493 static PyObject
*fget_noctets(PyObject
*me
, void *hunoz
)
494 { return (PyInt_FromLong(FIELD_F(me
)->noctets
)); }
496 static PyObject
*fget_name(PyObject
*me
, void *hunoz
)
497 { return (PyString_FromString(F_NAME(FIELD_F(me
)))); }
499 static PyObject
*fget_type(PyObject
*me
, void *hunoz
)
500 { return (PyInt_FromLong(F_TYPE(FIELD_F(me
)))); }
502 static PyGetSetDef field_pygetset
[] = {
503 #define GETSETNAME(op, name) f##op##_##name
504 GET (zero
, "F.zero -> field additive identity")
505 GET (one
, "F.one -> field multiplicative identity")
506 GET (q
, "F.q -> number of elements in field")
507 GET (nbits
, "F.nbits -> bits needed to represent element")
508 GET (noctets
, "F.noctets -> octetss needed to represent element")
509 GET (name
, "F.name -> name of this kind of field")
510 GET (type
, "F.type -> type code of this kind of field")
515 static PyMethodDef field_pymethods
[] = {
516 #define METHNAME(name) fmeth_##name
517 METH (_adopt
, "F._adopt(X) -> FE")
518 KWMETH(rand
, "F.rand([rng = rand]) -> FE, uniformly distributed")
523 static PyTypeObject field_pytype_skel
= {
524 PyObject_HEAD_INIT(0) 0, /* Header */
525 "Field", /* @tp_name@ */
526 sizeof(field_pyobj
), /* @tp_basicsize@ */
527 0, /* @tp_itemsize@ */
529 field_pydealloc
, /* @tp_dealloc@ */
531 0, /* @tp_getattr@ */
532 0, /* @tp_setattr@ */
533 0, /* @tp_compare@ */
535 0, /* @tp_as_number@ */
536 0, /* @tp_as_sequence@ */
537 0, /* @tp_as_mapping@ */
541 0, /* @tp_getattro@ */
542 0, /* @tp_setattro@ */
543 0, /* @tp_as_buffer@ */
544 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
548 "An abstract field. This is an abstract type.",
550 0, /* @tp_traverse@ */
552 field_pyrichcompare
, /* @tp_richcompare@ */
553 0, /* @tp_weaklistoffset@ */
555 0, /* @tp_iternext@ */
556 field_pymethods
, /* @tp_methods@ */
557 0, /* @tp_members@ */
558 field_pygetset
, /* @tp_getset@ */
561 0, /* @tp_descr_get@ */
562 0, /* @tp_descr_set@ */
563 0, /* @tp_dictoffset@ */
565 PyType_GenericAlloc
, /* @tp_alloc@ */
566 abstract_pynew
, /* @tp_new@ */
571 /*----- Prime fields ------------------------------------------------------*/
573 static PyObject
*primefield_pynew(PyTypeObject
*ty
,
574 PyObject
*arg
, PyObject
*kw
)
578 static const char *const kwlist
[] = { "p", 0 };
580 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&:primefield", KWLIST
,
583 if ((f
= field_prime(xx
)) == 0)
584 VALERR("bad prime for primefield");
586 return (field_dopywrap(ty
, f
));
592 static PyObject
*pfget_p(PyObject
*me
, void *hunoz
)
593 { return (mp_pywrap(MP_COPY(FIELD_F(me
)->m
))); }
595 static PyGetSetDef primefield_pygetset
[] = {
596 #define GETSETNAME(op, name) pf##op##_##name
597 GET (p
, "F.p -> prime field characteristic")
601 static PyTypeObject primefield_pytype_skel
= {
602 PyObject_HEAD_INIT(0) 0, /* Header */
603 "PrimeField", /* @tp_name@ */
604 sizeof(field_pyobj
), /* @tp_basicsize@ */
605 0, /* @tp_itemsize@ */
607 field_pydealloc
, /* @tp_dealloc@ */
609 0, /* @tp_getattr@ */
610 0, /* @tp_setattr@ */
611 0, /* @tp_compare@ */
613 0, /* @tp_as_number@ */
614 0, /* @tp_as_sequence@ */
615 0, /* @tp_as_mapping@ */
619 0, /* @tp_getattro@ */
620 0, /* @tp_setattro@ */
621 0, /* @tp_as_buffer@ */
622 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
626 "PrimeField(P): prime fields.",
628 0, /* @tp_traverse@ */
630 field_pyrichcompare
, /* @tp_richcompare@ */
631 0, /* @tp_weaklistoffset@ */
633 0, /* @tp_iternext@ */
634 0, /* @tp_methods@ */
635 0, /* @tp_members@ */
636 primefield_pygetset
, /* @tp_getset@ */
639 0, /* @tp_descr_get@ */
640 0, /* @tp_descr_set@ */
641 0, /* @tp_dictoffset@ */
643 PyType_GenericAlloc
, /* @tp_alloc@ */
644 primefield_pynew
, /* @tp_new@ */
649 static PyObject
*niceprimefield_pynew(PyTypeObject
*ty
,
650 PyObject
*arg
, PyObject
*kw
)
654 static const char *const kwlist
[] = { "p", 0 };
656 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&:niceprimefield",
657 KWLIST
, convmp
, &xx
))
659 if ((f
= field_niceprime(xx
)) == 0)
660 VALERR("bad prime for niceprimefield");
662 return (field_dopywrap(ty
, f
));
668 static PyTypeObject niceprimefield_pytype_skel
= {
669 PyObject_HEAD_INIT(0) 0, /* Header */
670 "NicePrimeField", /* @tp_name@ */
671 sizeof(field_pyobj
), /* @tp_basicsize@ */
672 0, /* @tp_itemsize@ */
674 field_pydealloc
, /* @tp_dealloc@ */
676 0, /* @tp_getattr@ */
677 0, /* @tp_setattr@ */
678 0, /* @tp_compare@ */
680 0, /* @tp_as_number@ */
681 0, /* @tp_as_sequence@ */
682 0, /* @tp_as_mapping@ */
686 0, /* @tp_getattro@ */
687 0, /* @tp_setattro@ */
688 0, /* @tp_as_buffer@ */
689 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
693 "NicePrimeField(P): prime field using Solinas reduction.",
695 0, /* @tp_traverse@ */
697 field_pyrichcompare
, /* @tp_richcompare@ */
698 0, /* @tp_weaklistoffset@ */
700 0, /* @tp_iternext@ */
701 0, /* @tp_methods@ */
702 0, /* @tp_members@ */
706 0, /* @tp_descr_get@ */
707 0, /* @tp_descr_set@ */
708 0, /* @tp_dictoffset@ */
710 PyType_GenericAlloc
, /* @tp_alloc@ */
711 niceprimefield_pynew
, /* @tp_new@ */
716 /*----- Binary fields -----------------------------------------------------*/
718 static PyObject
*bfget_m(PyObject
*me
, void *hunoz
)
719 { return (PyInt_FromLong(FIELD_F(me
)->nbits
)); }
721 static PyGetSetDef binfield_pygetset
[] = {
722 #define GETSETNAME(op, name) bf##op##_##name
723 GET (m
, "F.m -> field polynomial degree")
728 static PyTypeObject binfield_pytype_skel
= {
729 PyObject_HEAD_INIT(0) 0, /* Header */
730 "BinField", /* @tp_name@ */
731 sizeof(field_pyobj
), /* @tp_basicsize@ */
732 0, /* @tp_itemsize@ */
734 field_pydealloc
, /* @tp_dealloc@ */
736 0, /* @tp_getattr@ */
737 0, /* @tp_setattr@ */
738 0, /* @tp_compare@ */
740 0, /* @tp_as_number@ */
741 0, /* @tp_as_sequence@ */
742 0, /* @tp_as_mapping@ */
746 0, /* @tp_getattro@ */
747 0, /* @tp_setattro@ */
748 0, /* @tp_as_buffer@ */
749 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
753 "Binary fields. Abstract class.",
755 0, /* @tp_traverse@ */
757 field_pyrichcompare
, /* @tp_richcompare@ */
758 0, /* @tp_weaklistoffset@ */
760 0, /* @tp_iternext@ */
761 0, /* @tp_methods@ */
762 0, /* @tp_members@ */
763 binfield_pygetset
, /* @tp_getset@ */
766 0, /* @tp_descr_get@ */
767 0, /* @tp_descr_set@ */
768 0, /* @tp_dictoffset@ */
770 PyType_GenericAlloc
, /* @tp_alloc@ */
771 abstract_pynew
, /* @tp_new@ */
776 static PyObject
*binpolyfield_pynew(PyTypeObject
*ty
,
777 PyObject
*arg
, PyObject
*kw
)
781 static const char *const kwlist
[] = { "p", 0 };
783 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&:binpolyfield", KWLIST
,
786 if ((f
= field_binpoly(xx
)) == 0) VALERR("bad poly for binpolyfield");
788 return (field_dopywrap(ty
, f
));
794 static PyObject
*bfget_p(PyObject
*me
, void *hunoz
)
795 { return (gf_pywrap(MP_COPY(FIELD_F(me
)->m
))); }
797 static PyGetSetDef binpolyfield_pygetset
[] = {
798 #define GETSETNAME(op, name) bf##op##_##name
799 GET (p
, "F.p -> field polynomial")
804 static PyTypeObject binpolyfield_pytype_skel
= {
805 PyObject_HEAD_INIT(0) 0, /* Header */
806 "BinPolyField", /* @tp_name@ */
807 sizeof(field_pyobj
), /* @tp_basicsize@ */
808 0, /* @tp_itemsize@ */
810 field_pydealloc
, /* @tp_dealloc@ */
812 0, /* @tp_getattr@ */
813 0, /* @tp_setattr@ */
814 0, /* @tp_compare@ */
816 0, /* @tp_as_number@ */
817 0, /* @tp_as_sequence@ */
818 0, /* @tp_as_mapping@ */
822 0, /* @tp_getattro@ */
823 0, /* @tp_setattro@ */
824 0, /* @tp_as_buffer@ */
825 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
829 "BinPolyField(P): binary fields with polynomial basis representation.",
831 0, /* @tp_traverse@ */
833 field_pyrichcompare
, /* @tp_richcompare@ */
834 0, /* @tp_weaklistoffset@ */
836 0, /* @tp_iternext@ */
837 0, /* @tp_methods@ */
838 0, /* @tp_members@ */
839 binpolyfield_pygetset
, /* @tp_getset@ */
842 0, /* @tp_descr_get@ */
843 0, /* @tp_descr_set@ */
844 0, /* @tp_dictoffset@ */
846 PyType_GenericAlloc
, /* @tp_alloc@ */
847 binpolyfield_pynew
, /* @tp_new@ */
852 static PyObject
*binnormfield_pynew(PyTypeObject
*ty
,
853 PyObject
*arg
, PyObject
*kw
)
857 static const char *const kwlist
[] = { "p", "beta", 0 };
859 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&O&:binnormfield",
860 KWLIST
, convgf
, &xx
, convgf
, &yy
))
862 if ((f
= field_binnorm(xx
, yy
)) == 0) VALERR("bad args for binnormfield");
863 MP_DROP(xx
); MP_DROP(yy
);
864 return (field_dopywrap(ty
, f
));
866 mp_drop(xx
); mp_drop(yy
);
870 static PyObject
*bnfget_beta(PyObject
*me
, void *hunoz
)
872 fctx_binnorm
*fc
= (fctx_binnorm
*)FIELD_F(me
);
873 return (gf_pywrap(MP_COPY(fc
->ntop
.r
[fc
->ntop
.n
- 1])));
876 static PyGetSetDef binnormfield_pygetset
[] = {
877 #define GETSETNAME(op, name) bf##op##_##name
878 GET (p
, "F.p -> field polynomial")
880 #define GETSETNAME(op, name) bnf##op##_##name
881 GET (beta
, "F.beta -> conversion factor")
886 static PyTypeObject binnormfield_pytype_skel
= {
887 PyObject_HEAD_INIT(0) 0, /* Header */
888 "BinNormField", /* @tp_name@ */
889 sizeof(field_pyobj
), /* @tp_basicsize@ */
890 0, /* @tp_itemsize@ */
892 field_pydealloc
, /* @tp_dealloc@ */
894 0, /* @tp_getattr@ */
895 0, /* @tp_setattr@ */
896 0, /* @tp_compare@ */
898 0, /* @tp_as_number@ */
899 0, /* @tp_as_sequence@ */
900 0, /* @tp_as_mapping@ */
904 0, /* @tp_getattro@ */
905 0, /* @tp_setattro@ */
906 0, /* @tp_as_buffer@ */
907 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
911 "BinNormField(P, BETA): binary fields with normal basis representation.",
913 0, /* @tp_traverse@ */
915 field_pyrichcompare
, /* @tp_richcompare@ */
916 0, /* @tp_weaklistoffset@ */
918 0, /* @tp_iternext@ */
919 0, /* @tp_methods@ */
920 0, /* @tp_members@ */
921 binnormfield_pygetset
, /* @tp_getset@ */
924 0, /* @tp_descr_get@ */
925 0, /* @tp_descr_set@ */
926 0, /* @tp_dictoffset@ */
928 PyType_GenericAlloc
, /* @tp_alloc@ */
929 binnormfield_pynew
, /* @tp_new@ */
934 /*----- Setup -------------------------------------------------------------*/
936 static PyObject
*meth__Field_parse(PyObject
*me
, PyObject
*arg
)
943 if (!PyArg_ParseTuple(arg
, "Os:parse", &me
, &p
))
947 if ((f
= field_parse(&qd
)) == 0)
949 rc
= Py_BuildValue("(Ns)", field_pywrap(f
), qd
.p
);
954 static PyMethodDef methods
[] = {
955 #define METHNAME(func) meth_##func
956 METH (_Field_parse
, "parse(STR) -> F, REST")
961 void field_pyinit(void)
964 INITTYPE(field
, type
);
965 INITTYPE(primefield
, field
);
966 INITTYPE(niceprimefield
, primefield
);
967 INITTYPE(binfield
, field
);
968 INITTYPE(binpolyfield
, binfield
);
969 INITTYPE(binnormfield
, binfield
);
973 void field_pyinsert(PyObject
*mod
)
975 INSERT("FE", fe_pytype
);
976 INSERT("Field", field_pytype
);
977 INSERT("PrimeField", primefield_pytype
);
978 INSERT("NicePrimeField", niceprimefield_pytype
);
979 INSERT("BinField", binfield_pytype
);
980 INSERT("BinPolyField", binpolyfield_pytype
);
981 INSERT("BinNormField", binnormfield_pytype
);
984 /*----- That's all, folks -------------------------------------------------*/