cpython/Modules/_randommodule.c

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/* Random objects */
/* ------------------------------------------------------------------
The code in this module was based on a download from:
http://www.math.keio.ac.jp/~matumoto/MT2002/emt19937ar.html
It was modified in 2002 by Raymond Hettinger as follows:
* the principal computational lines untouched except for tabbing.
* renamed genrand_res53() to random_random() and wrapped
in python calling/return code.
* genrand_int32() and the helper functions, init_genrand()
and init_by_array(), were declared static, wrapped in
Python calling/return code. also, their global data
references were replaced with structure references.
* unused functions from the original were deleted.
new, original C python code was added to implement the
Random() interface.
The following are the verbatim comments from the original code:
A C-program for MT19937, with initialization improved 2002/1/26.
Coded by Takuji Nishimura and Makoto Matsumoto.
Before using, initialize the state by using init_genrand(seed)
or init_by_array(init_key, key_length).
Copyright (C) 1997 - 2002, Makoto Matsumoto and Takuji Nishimura,
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The names of its contributors may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Any feedback is very welcome.
http://www.math.keio.ac.jp/matumoto/emt.html
email: matumoto@math.keio.ac.jp
*/
/* ---------------------------------------------------------------*/
#include "Python.h"
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#include <time.h> /* for seeding to current time */
/* Period parameters -- These are all magic. Don't change. */
#define N 624
#define M 397
#define MATRIX_A 0x9908b0dfUL /* constant vector a */
#define UPPER_MASK 0x80000000UL /* most significant w-r bits */
#define LOWER_MASK 0x7fffffffUL /* least significant r bits */
typedef struct {
PyObject_HEAD
unsigned long state[N];
int index;
} RandomObject;
static PyTypeObject Random_Type;
#define RandomObject_Check(v) (Py_TYPE(v) == &Random_Type)
/* Random methods */
/* generates a random number on [0,0xffffffff]-interval */
static unsigned long
genrand_int32(RandomObject *self)
{
unsigned long y;
static unsigned long mag01[2]={0x0UL, MATRIX_A};
/* mag01[x] = x * MATRIX_A for x=0,1 */
unsigned long *mt;
mt = self->state;
if (self->index >= N) { /* generate N words at one time */
int kk;
for (kk=0;kk<N-M;kk++) {
y = (mt[kk]&UPPER_MASK)|(mt[kk+1]&LOWER_MASK);
mt[kk] = mt[kk+M] ^ (y >> 1) ^ mag01[y & 0x1UL];
}
for (;kk<N-1;kk++) {
y = (mt[kk]&UPPER_MASK)|(mt[kk+1]&LOWER_MASK);
mt[kk] = mt[kk+(M-N)] ^ (y >> 1) ^ mag01[y & 0x1UL];
2003-04-16 15:40:04 -03:00
}
y = (mt[N-1]&UPPER_MASK)|(mt[0]&LOWER_MASK);
mt[N-1] = mt[M-1] ^ (y >> 1) ^ mag01[y & 0x1UL];
self->index = 0;
}
y = mt[self->index++];
y ^= (y >> 11);
y ^= (y << 7) & 0x9d2c5680UL;
y ^= (y << 15) & 0xefc60000UL;
y ^= (y >> 18);
return y;
}
/* random_random is the function named genrand_res53 in the original code;
* generates a random number on [0,1) with 53-bit resolution; note that
* 9007199254740992 == 2**53; I assume they're spelling "/2**53" as
* multiply-by-reciprocal in the (likely vain) hope that the compiler will
* optimize the division away at compile-time. 67108864 is 2**26. In
* effect, a contains 27 random bits shifted left 26, and b fills in the
* lower 26 bits of the 53-bit numerator.
* The orginal code credited Isaku Wada for this algorithm, 2002/01/09.
*/
static PyObject *
random_random(RandomObject *self)
{
unsigned long a=genrand_int32(self)>>5, b=genrand_int32(self)>>6;
return PyFloat_FromDouble((a*67108864.0+b)*(1.0/9007199254740992.0));
}
/* initializes mt[N] with a seed */
static void
init_genrand(RandomObject *self, unsigned long s)
{
int mti;
unsigned long *mt;
mt = self->state;
mt[0]= s & 0xffffffffUL;
for (mti=1; mti<N; mti++) {
mt[mti] =
(1812433253UL * (mt[mti-1] ^ (mt[mti-1] >> 30)) + mti);
/* See Knuth TAOCP Vol2. 3rd Ed. P.106 for multiplier. */
/* In the previous versions, MSBs of the seed affect */
/* only MSBs of the array mt[]. */
/* 2002/01/09 modified by Makoto Matsumoto */
mt[mti] &= 0xffffffffUL;
/* for >32 bit machines */
}
self->index = mti;
return;
}
/* initialize by an array with array-length */
/* init_key is the array for initializing keys */
/* key_length is its length */
static PyObject *
init_by_array(RandomObject *self, unsigned long init_key[], unsigned long key_length)
{
unsigned int i, j, k; /* was signed in the original code. RDH 12/16/2002 */
unsigned long *mt;
mt = self->state;
init_genrand(self, 19650218UL);
i=1; j=0;
k = (N>key_length ? N : key_length);
for (; k; k--) {
mt[i] = (mt[i] ^ ((mt[i-1] ^ (mt[i-1] >> 30)) * 1664525UL))
+ init_key[j] + j; /* non linear */
mt[i] &= 0xffffffffUL; /* for WORDSIZE > 32 machines */
i++; j++;
if (i>=N) { mt[0] = mt[N-1]; i=1; }
if (j>=key_length) j=0;
}
for (k=N-1; k; k--) {
mt[i] = (mt[i] ^ ((mt[i-1] ^ (mt[i-1] >> 30)) * 1566083941UL))
- i; /* non linear */
mt[i] &= 0xffffffffUL; /* for WORDSIZE > 32 machines */
i++;
if (i>=N) { mt[0] = mt[N-1]; i=1; }
}
mt[0] = 0x80000000UL; /* MSB is 1; assuring non-zero initial array */
Py_INCREF(Py_None);
return Py_None;
}
/*
* The rest is Python-specific code, neither part of, nor derived from, the
* Twister download.
*/
static PyObject *
random_seed(RandomObject *self, PyObject *args)
{
PyObject *result = NULL; /* guilty until proved innocent */
PyObject *masklower = NULL;
PyObject *thirtytwo = NULL;
PyObject *n = NULL;
unsigned long *key = NULL;
unsigned long keymax; /* # of allocated slots in key */
unsigned long keyused; /* # of used slots in key */
int err;
PyObject *arg = NULL;
if (!PyArg_UnpackTuple(args, "seed", 0, 1, &arg))
return NULL;
if (arg == NULL || arg == Py_None) {
time_t now;
time(&now);
init_genrand(self, (unsigned long)now);
Py_INCREF(Py_None);
return Py_None;
}
/* If the arg is an int or long, use its absolute value; else use
* the absolute value of its hash code.
*/
if (PyLong_Check(arg))
n = PyNumber_Absolute(arg);
else {
long hash = PyObject_Hash(arg);
if (hash == -1)
goto Done;
n = PyLong_FromUnsignedLong((unsigned long)hash);
}
if (n == NULL)
goto Done;
/* Now split n into 32-bit chunks, from the right. Each piece is
* stored into key, which has a capacity of keymax chunks, of which
* keyused are filled. Alas, the repeated shifting makes this a
* quadratic-time algorithm; we'd really like to use
* _PyLong_AsByteArray here, but then we'd have to break into the
* long representation to figure out how big an array was needed
* in advance.
*/
keymax = 8; /* arbitrary; grows later if needed */
keyused = 0;
key = (unsigned long *)PyMem_Malloc(keymax * sizeof(*key));
if (key == NULL)
goto Done;
masklower = PyLong_FromUnsignedLong(0xffffffffU);
if (masklower == NULL)
goto Done;
thirtytwo = PyLong_FromLong(32L);
if (thirtytwo == NULL)
goto Done;
while ((err=PyObject_IsTrue(n))) {
PyObject *newn;
PyObject *pychunk;
unsigned long chunk;
if (err == -1)
goto Done;
pychunk = PyNumber_And(n, masklower);
if (pychunk == NULL)
goto Done;
chunk = PyLong_AsUnsignedLong(pychunk);
Py_DECREF(pychunk);
if (chunk == (unsigned long)-1 && PyErr_Occurred())
goto Done;
newn = PyNumber_Rshift(n, thirtytwo);
if (newn == NULL)
goto Done;
Py_DECREF(n);
n = newn;
if (keyused >= keymax) {
unsigned long bigger = keymax << 1;
if ((bigger >> 1) != keymax) {
PyErr_NoMemory();
goto Done;
}
key = (unsigned long *)PyMem_Realloc(key,
bigger * sizeof(*key));
if (key == NULL)
goto Done;
keymax = bigger;
}
assert(keyused < keymax);
key[keyused++] = chunk;
}
if (keyused == 0)
key[keyused++] = 0UL;
result = init_by_array(self, key, keyused);
Done:
Py_XDECREF(masklower);
Py_XDECREF(thirtytwo);
Py_XDECREF(n);
PyMem_Free(key);
return result;
}
static PyObject *
random_getstate(RandomObject *self)
{
PyObject *state;
PyObject *element;
int i;
state = PyTuple_New(N+1);
if (state == NULL)
return NULL;
for (i=0; i<N ; i++) {
Merged revisions 59275-59303 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! NOTE: The merge does NOT contain the modified file Python/import.c from r59288. I can't get it running. Nick, please check in the PEP 366 manually. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ........ r59279 | georg.brandl | 2007-12-02 19:17:50 +0100 (Sun, 02 Dec 2007) | 2 lines Fix a sentence I missed before. Do not merge to 3k. ........ r59281 | georg.brandl | 2007-12-02 22:58:54 +0100 (Sun, 02 Dec 2007) | 3 lines Add documentation for PySys_* functions. Written by Charlie Shepherd for GHOP. Also fixes #1245. ........ r59288 | nick.coghlan | 2007-12-03 13:55:17 +0100 (Mon, 03 Dec 2007) | 1 line Implement PEP 366 ........ r59290 | christian.heimes | 2007-12-03 14:47:29 +0100 (Mon, 03 Dec 2007) | 3 lines Applied my patch #1455 with some extra fixes for VS 2005 The new msvc9compiler module supports VS 2005 and VS 2008. I've also fixed build_ext to support PCbuild8 and PCbuild9 and backported my fix for xxmodule.c from py3k. The old code msvccompiler is still in place in case somebody likes to build an extension with VS 2003 or earlier. I've also updated the cygwin compiler module for VS 2005 and VS 2008. It works with VS 2005 but I'm unable to test it with VS 2008. We have to wait for a new version of cygwin. ........ r59291 | christian.heimes | 2007-12-03 14:55:16 +0100 (Mon, 03 Dec 2007) | 1 line Added comment to Misc/NEWS for r59290 ........ r59292 | christian.heimes | 2007-12-03 15:28:04 +0100 (Mon, 03 Dec 2007) | 1 line I followed MA Lemberg's suggestion and added comments to the late initialization of the type slots. ........ r59293 | facundo.batista | 2007-12-03 17:29:52 +0100 (Mon, 03 Dec 2007) | 3 lines Speedup and cleaning of __str__. Thanks Mark Dickinson. ........ r59294 | facundo.batista | 2007-12-03 18:55:00 +0100 (Mon, 03 Dec 2007) | 4 lines Faster _fix function, and some reordering for a more elegant coding. Thanks Mark Dickinson. ........ r59295 | martin.v.loewis | 2007-12-03 20:20:02 +0100 (Mon, 03 Dec 2007) | 5 lines Issue #1727780: Support loading pickles of random.Random objects created on 32-bit systems on 64-bit systems, and vice versa. As a consequence of the change, Random pickles created by Python 2.6 cannot be loaded in Python 2.5. ........ r59297 | facundo.batista | 2007-12-03 20:49:54 +0100 (Mon, 03 Dec 2007) | 3 lines Two small fixes. Issue 1547. ........ r59299 | georg.brandl | 2007-12-03 20:57:02 +0100 (Mon, 03 Dec 2007) | 2 lines #1548: fix apostroph placement. ........ r59300 | christian.heimes | 2007-12-03 21:01:02 +0100 (Mon, 03 Dec 2007) | 3 lines Patch #1537 from Chad Austin Change GeneratorExit's base class from Exception to BaseException (This time I'm applying the patch to the correct sandbox.) ........ r59302 | georg.brandl | 2007-12-03 21:03:46 +0100 (Mon, 03 Dec 2007) | 3 lines Add examples to the xmlrpclib docs. Written for GHOP by Josip Dzolonga. ........
2007-12-03 17:02:03 -04:00
element = PyLong_FromUnsignedLong(self->state[i]);
if (element == NULL)
goto Fail;
PyTuple_SET_ITEM(state, i, element);
}
element = PyLong_FromLong((long)(self->index));
if (element == NULL)
goto Fail;
PyTuple_SET_ITEM(state, i, element);
return state;
Fail:
Py_DECREF(state);
return NULL;
}
static PyObject *
random_setstate(RandomObject *self, PyObject *state)
{
int i;
Merged revisions 59275-59303 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! NOTE: The merge does NOT contain the modified file Python/import.c from r59288. I can't get it running. Nick, please check in the PEP 366 manually. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ........ r59279 | georg.brandl | 2007-12-02 19:17:50 +0100 (Sun, 02 Dec 2007) | 2 lines Fix a sentence I missed before. Do not merge to 3k. ........ r59281 | georg.brandl | 2007-12-02 22:58:54 +0100 (Sun, 02 Dec 2007) | 3 lines Add documentation for PySys_* functions. Written by Charlie Shepherd for GHOP. Also fixes #1245. ........ r59288 | nick.coghlan | 2007-12-03 13:55:17 +0100 (Mon, 03 Dec 2007) | 1 line Implement PEP 366 ........ r59290 | christian.heimes | 2007-12-03 14:47:29 +0100 (Mon, 03 Dec 2007) | 3 lines Applied my patch #1455 with some extra fixes for VS 2005 The new msvc9compiler module supports VS 2005 and VS 2008. I've also fixed build_ext to support PCbuild8 and PCbuild9 and backported my fix for xxmodule.c from py3k. The old code msvccompiler is still in place in case somebody likes to build an extension with VS 2003 or earlier. I've also updated the cygwin compiler module for VS 2005 and VS 2008. It works with VS 2005 but I'm unable to test it with VS 2008. We have to wait for a new version of cygwin. ........ r59291 | christian.heimes | 2007-12-03 14:55:16 +0100 (Mon, 03 Dec 2007) | 1 line Added comment to Misc/NEWS for r59290 ........ r59292 | christian.heimes | 2007-12-03 15:28:04 +0100 (Mon, 03 Dec 2007) | 1 line I followed MA Lemberg's suggestion and added comments to the late initialization of the type slots. ........ r59293 | facundo.batista | 2007-12-03 17:29:52 +0100 (Mon, 03 Dec 2007) | 3 lines Speedup and cleaning of __str__. Thanks Mark Dickinson. ........ r59294 | facundo.batista | 2007-12-03 18:55:00 +0100 (Mon, 03 Dec 2007) | 4 lines Faster _fix function, and some reordering for a more elegant coding. Thanks Mark Dickinson. ........ r59295 | martin.v.loewis | 2007-12-03 20:20:02 +0100 (Mon, 03 Dec 2007) | 5 lines Issue #1727780: Support loading pickles of random.Random objects created on 32-bit systems on 64-bit systems, and vice versa. As a consequence of the change, Random pickles created by Python 2.6 cannot be loaded in Python 2.5. ........ r59297 | facundo.batista | 2007-12-03 20:49:54 +0100 (Mon, 03 Dec 2007) | 3 lines Two small fixes. Issue 1547. ........ r59299 | georg.brandl | 2007-12-03 20:57:02 +0100 (Mon, 03 Dec 2007) | 2 lines #1548: fix apostroph placement. ........ r59300 | christian.heimes | 2007-12-03 21:01:02 +0100 (Mon, 03 Dec 2007) | 3 lines Patch #1537 from Chad Austin Change GeneratorExit's base class from Exception to BaseException (This time I'm applying the patch to the correct sandbox.) ........ r59302 | georg.brandl | 2007-12-03 21:03:46 +0100 (Mon, 03 Dec 2007) | 3 lines Add examples to the xmlrpclib docs. Written for GHOP by Josip Dzolonga. ........
2007-12-03 17:02:03 -04:00
unsigned long element;
long index;
if (!PyTuple_Check(state)) {
PyErr_SetString(PyExc_TypeError,
"state vector must be a tuple");
return NULL;
}
if (PyTuple_Size(state) != N+1) {
PyErr_SetString(PyExc_ValueError,
"state vector is the wrong size");
return NULL;
}
for (i=0; i<N ; i++) {
Merged revisions 59275-59303 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! NOTE: The merge does NOT contain the modified file Python/import.c from r59288. I can't get it running. Nick, please check in the PEP 366 manually. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ........ r59279 | georg.brandl | 2007-12-02 19:17:50 +0100 (Sun, 02 Dec 2007) | 2 lines Fix a sentence I missed before. Do not merge to 3k. ........ r59281 | georg.brandl | 2007-12-02 22:58:54 +0100 (Sun, 02 Dec 2007) | 3 lines Add documentation for PySys_* functions. Written by Charlie Shepherd for GHOP. Also fixes #1245. ........ r59288 | nick.coghlan | 2007-12-03 13:55:17 +0100 (Mon, 03 Dec 2007) | 1 line Implement PEP 366 ........ r59290 | christian.heimes | 2007-12-03 14:47:29 +0100 (Mon, 03 Dec 2007) | 3 lines Applied my patch #1455 with some extra fixes for VS 2005 The new msvc9compiler module supports VS 2005 and VS 2008. I've also fixed build_ext to support PCbuild8 and PCbuild9 and backported my fix for xxmodule.c from py3k. The old code msvccompiler is still in place in case somebody likes to build an extension with VS 2003 or earlier. I've also updated the cygwin compiler module for VS 2005 and VS 2008. It works with VS 2005 but I'm unable to test it with VS 2008. We have to wait for a new version of cygwin. ........ r59291 | christian.heimes | 2007-12-03 14:55:16 +0100 (Mon, 03 Dec 2007) | 1 line Added comment to Misc/NEWS for r59290 ........ r59292 | christian.heimes | 2007-12-03 15:28:04 +0100 (Mon, 03 Dec 2007) | 1 line I followed MA Lemberg's suggestion and added comments to the late initialization of the type slots. ........ r59293 | facundo.batista | 2007-12-03 17:29:52 +0100 (Mon, 03 Dec 2007) | 3 lines Speedup and cleaning of __str__. Thanks Mark Dickinson. ........ r59294 | facundo.batista | 2007-12-03 18:55:00 +0100 (Mon, 03 Dec 2007) | 4 lines Faster _fix function, and some reordering for a more elegant coding. Thanks Mark Dickinson. ........ r59295 | martin.v.loewis | 2007-12-03 20:20:02 +0100 (Mon, 03 Dec 2007) | 5 lines Issue #1727780: Support loading pickles of random.Random objects created on 32-bit systems on 64-bit systems, and vice versa. As a consequence of the change, Random pickles created by Python 2.6 cannot be loaded in Python 2.5. ........ r59297 | facundo.batista | 2007-12-03 20:49:54 +0100 (Mon, 03 Dec 2007) | 3 lines Two small fixes. Issue 1547. ........ r59299 | georg.brandl | 2007-12-03 20:57:02 +0100 (Mon, 03 Dec 2007) | 2 lines #1548: fix apostroph placement. ........ r59300 | christian.heimes | 2007-12-03 21:01:02 +0100 (Mon, 03 Dec 2007) | 3 lines Patch #1537 from Chad Austin Change GeneratorExit's base class from Exception to BaseException (This time I'm applying the patch to the correct sandbox.) ........ r59302 | georg.brandl | 2007-12-03 21:03:46 +0100 (Mon, 03 Dec 2007) | 3 lines Add examples to the xmlrpclib docs. Written for GHOP by Josip Dzolonga. ........
2007-12-03 17:02:03 -04:00
element = PyLong_AsUnsignedLong(PyTuple_GET_ITEM(state, i));
if (element == (unsigned long)-1 && PyErr_Occurred())
return NULL;
Merged revisions 59275-59303 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! NOTE: The merge does NOT contain the modified file Python/import.c from r59288. I can't get it running. Nick, please check in the PEP 366 manually. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ........ r59279 | georg.brandl | 2007-12-02 19:17:50 +0100 (Sun, 02 Dec 2007) | 2 lines Fix a sentence I missed before. Do not merge to 3k. ........ r59281 | georg.brandl | 2007-12-02 22:58:54 +0100 (Sun, 02 Dec 2007) | 3 lines Add documentation for PySys_* functions. Written by Charlie Shepherd for GHOP. Also fixes #1245. ........ r59288 | nick.coghlan | 2007-12-03 13:55:17 +0100 (Mon, 03 Dec 2007) | 1 line Implement PEP 366 ........ r59290 | christian.heimes | 2007-12-03 14:47:29 +0100 (Mon, 03 Dec 2007) | 3 lines Applied my patch #1455 with some extra fixes for VS 2005 The new msvc9compiler module supports VS 2005 and VS 2008. I've also fixed build_ext to support PCbuild8 and PCbuild9 and backported my fix for xxmodule.c from py3k. The old code msvccompiler is still in place in case somebody likes to build an extension with VS 2003 or earlier. I've also updated the cygwin compiler module for VS 2005 and VS 2008. It works with VS 2005 but I'm unable to test it with VS 2008. We have to wait for a new version of cygwin. ........ r59291 | christian.heimes | 2007-12-03 14:55:16 +0100 (Mon, 03 Dec 2007) | 1 line Added comment to Misc/NEWS for r59290 ........ r59292 | christian.heimes | 2007-12-03 15:28:04 +0100 (Mon, 03 Dec 2007) | 1 line I followed MA Lemberg's suggestion and added comments to the late initialization of the type slots. ........ r59293 | facundo.batista | 2007-12-03 17:29:52 +0100 (Mon, 03 Dec 2007) | 3 lines Speedup and cleaning of __str__. Thanks Mark Dickinson. ........ r59294 | facundo.batista | 2007-12-03 18:55:00 +0100 (Mon, 03 Dec 2007) | 4 lines Faster _fix function, and some reordering for a more elegant coding. Thanks Mark Dickinson. ........ r59295 | martin.v.loewis | 2007-12-03 20:20:02 +0100 (Mon, 03 Dec 2007) | 5 lines Issue #1727780: Support loading pickles of random.Random objects created on 32-bit systems on 64-bit systems, and vice versa. As a consequence of the change, Random pickles created by Python 2.6 cannot be loaded in Python 2.5. ........ r59297 | facundo.batista | 2007-12-03 20:49:54 +0100 (Mon, 03 Dec 2007) | 3 lines Two small fixes. Issue 1547. ........ r59299 | georg.brandl | 2007-12-03 20:57:02 +0100 (Mon, 03 Dec 2007) | 2 lines #1548: fix apostroph placement. ........ r59300 | christian.heimes | 2007-12-03 21:01:02 +0100 (Mon, 03 Dec 2007) | 3 lines Patch #1537 from Chad Austin Change GeneratorExit's base class from Exception to BaseException (This time I'm applying the patch to the correct sandbox.) ........ r59302 | georg.brandl | 2007-12-03 21:03:46 +0100 (Mon, 03 Dec 2007) | 3 lines Add examples to the xmlrpclib docs. Written for GHOP by Josip Dzolonga. ........
2007-12-03 17:02:03 -04:00
self->state[i] = element & 0xffffffffUL; /* Make sure we get sane state */
}
Merged revisions 59275-59303 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! NOTE: The merge does NOT contain the modified file Python/import.c from r59288. I can't get it running. Nick, please check in the PEP 366 manually. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ........ r59279 | georg.brandl | 2007-12-02 19:17:50 +0100 (Sun, 02 Dec 2007) | 2 lines Fix a sentence I missed before. Do not merge to 3k. ........ r59281 | georg.brandl | 2007-12-02 22:58:54 +0100 (Sun, 02 Dec 2007) | 3 lines Add documentation for PySys_* functions. Written by Charlie Shepherd for GHOP. Also fixes #1245. ........ r59288 | nick.coghlan | 2007-12-03 13:55:17 +0100 (Mon, 03 Dec 2007) | 1 line Implement PEP 366 ........ r59290 | christian.heimes | 2007-12-03 14:47:29 +0100 (Mon, 03 Dec 2007) | 3 lines Applied my patch #1455 with some extra fixes for VS 2005 The new msvc9compiler module supports VS 2005 and VS 2008. I've also fixed build_ext to support PCbuild8 and PCbuild9 and backported my fix for xxmodule.c from py3k. The old code msvccompiler is still in place in case somebody likes to build an extension with VS 2003 or earlier. I've also updated the cygwin compiler module for VS 2005 and VS 2008. It works with VS 2005 but I'm unable to test it with VS 2008. We have to wait for a new version of cygwin. ........ r59291 | christian.heimes | 2007-12-03 14:55:16 +0100 (Mon, 03 Dec 2007) | 1 line Added comment to Misc/NEWS for r59290 ........ r59292 | christian.heimes | 2007-12-03 15:28:04 +0100 (Mon, 03 Dec 2007) | 1 line I followed MA Lemberg's suggestion and added comments to the late initialization of the type slots. ........ r59293 | facundo.batista | 2007-12-03 17:29:52 +0100 (Mon, 03 Dec 2007) | 3 lines Speedup and cleaning of __str__. Thanks Mark Dickinson. ........ r59294 | facundo.batista | 2007-12-03 18:55:00 +0100 (Mon, 03 Dec 2007) | 4 lines Faster _fix function, and some reordering for a more elegant coding. Thanks Mark Dickinson. ........ r59295 | martin.v.loewis | 2007-12-03 20:20:02 +0100 (Mon, 03 Dec 2007) | 5 lines Issue #1727780: Support loading pickles of random.Random objects created on 32-bit systems on 64-bit systems, and vice versa. As a consequence of the change, Random pickles created by Python 2.6 cannot be loaded in Python 2.5. ........ r59297 | facundo.batista | 2007-12-03 20:49:54 +0100 (Mon, 03 Dec 2007) | 3 lines Two small fixes. Issue 1547. ........ r59299 | georg.brandl | 2007-12-03 20:57:02 +0100 (Mon, 03 Dec 2007) | 2 lines #1548: fix apostroph placement. ........ r59300 | christian.heimes | 2007-12-03 21:01:02 +0100 (Mon, 03 Dec 2007) | 3 lines Patch #1537 from Chad Austin Change GeneratorExit's base class from Exception to BaseException (This time I'm applying the patch to the correct sandbox.) ........ r59302 | georg.brandl | 2007-12-03 21:03:46 +0100 (Mon, 03 Dec 2007) | 3 lines Add examples to the xmlrpclib docs. Written for GHOP by Josip Dzolonga. ........
2007-12-03 17:02:03 -04:00
index = PyLong_AsLong(PyTuple_GET_ITEM(state, i));
if (index == -1 && PyErr_Occurred())
return NULL;
Merged revisions 59275-59303 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! NOTE: The merge does NOT contain the modified file Python/import.c from r59288. I can't get it running. Nick, please check in the PEP 366 manually. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ........ r59279 | georg.brandl | 2007-12-02 19:17:50 +0100 (Sun, 02 Dec 2007) | 2 lines Fix a sentence I missed before. Do not merge to 3k. ........ r59281 | georg.brandl | 2007-12-02 22:58:54 +0100 (Sun, 02 Dec 2007) | 3 lines Add documentation for PySys_* functions. Written by Charlie Shepherd for GHOP. Also fixes #1245. ........ r59288 | nick.coghlan | 2007-12-03 13:55:17 +0100 (Mon, 03 Dec 2007) | 1 line Implement PEP 366 ........ r59290 | christian.heimes | 2007-12-03 14:47:29 +0100 (Mon, 03 Dec 2007) | 3 lines Applied my patch #1455 with some extra fixes for VS 2005 The new msvc9compiler module supports VS 2005 and VS 2008. I've also fixed build_ext to support PCbuild8 and PCbuild9 and backported my fix for xxmodule.c from py3k. The old code msvccompiler is still in place in case somebody likes to build an extension with VS 2003 or earlier. I've also updated the cygwin compiler module for VS 2005 and VS 2008. It works with VS 2005 but I'm unable to test it with VS 2008. We have to wait for a new version of cygwin. ........ r59291 | christian.heimes | 2007-12-03 14:55:16 +0100 (Mon, 03 Dec 2007) | 1 line Added comment to Misc/NEWS for r59290 ........ r59292 | christian.heimes | 2007-12-03 15:28:04 +0100 (Mon, 03 Dec 2007) | 1 line I followed MA Lemberg's suggestion and added comments to the late initialization of the type slots. ........ r59293 | facundo.batista | 2007-12-03 17:29:52 +0100 (Mon, 03 Dec 2007) | 3 lines Speedup and cleaning of __str__. Thanks Mark Dickinson. ........ r59294 | facundo.batista | 2007-12-03 18:55:00 +0100 (Mon, 03 Dec 2007) | 4 lines Faster _fix function, and some reordering for a more elegant coding. Thanks Mark Dickinson. ........ r59295 | martin.v.loewis | 2007-12-03 20:20:02 +0100 (Mon, 03 Dec 2007) | 5 lines Issue #1727780: Support loading pickles of random.Random objects created on 32-bit systems on 64-bit systems, and vice versa. As a consequence of the change, Random pickles created by Python 2.6 cannot be loaded in Python 2.5. ........ r59297 | facundo.batista | 2007-12-03 20:49:54 +0100 (Mon, 03 Dec 2007) | 3 lines Two small fixes. Issue 1547. ........ r59299 | georg.brandl | 2007-12-03 20:57:02 +0100 (Mon, 03 Dec 2007) | 2 lines #1548: fix apostroph placement. ........ r59300 | christian.heimes | 2007-12-03 21:01:02 +0100 (Mon, 03 Dec 2007) | 3 lines Patch #1537 from Chad Austin Change GeneratorExit's base class from Exception to BaseException (This time I'm applying the patch to the correct sandbox.) ........ r59302 | georg.brandl | 2007-12-03 21:03:46 +0100 (Mon, 03 Dec 2007) | 3 lines Add examples to the xmlrpclib docs. Written for GHOP by Josip Dzolonga. ........
2007-12-03 17:02:03 -04:00
self->index = (int)index;
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *
random_getrandbits(RandomObject *self, PyObject *args)
{
int k, i, bytes;
unsigned long r;
unsigned char *bytearray;
PyObject *result;
if (!PyArg_ParseTuple(args, "i:getrandbits", &k))
return NULL;
if (k <= 0) {
PyErr_SetString(PyExc_ValueError,
"number of bits must be greater than zero");
return NULL;
}
bytes = ((k - 1) / 32 + 1) * 4;
bytearray = (unsigned char *)PyMem_Malloc(bytes);
if (bytearray == NULL) {
PyErr_NoMemory();
return NULL;
}
/* Fill-out whole words, byte-by-byte to avoid endianness issues */
for (i=0 ; i<bytes ; i+=4, k-=32) {
r = genrand_int32(self);
if (k < 32)
r >>= (32 - k);
bytearray[i+0] = (unsigned char)r;
bytearray[i+1] = (unsigned char)(r >> 8);
bytearray[i+2] = (unsigned char)(r >> 16);
bytearray[i+3] = (unsigned char)(r >> 24);
}
/* little endian order to match bytearray assignment order */
result = _PyLong_FromByteArray(bytearray, bytes, 1, 0);
PyMem_Free(bytearray);
return result;
}
static PyObject *
random_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
{
RandomObject *self;
PyObject *tmp;
Merged revisions 53451-53537 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r53454 | brett.cannon | 2007-01-15 20:12:08 +0100 (Mon, 15 Jan 2007) | 3 lines Add a note for strptime that just because strftime supports some extra directive that is not documented that strptime will as well. ........ r53458 | vinay.sajip | 2007-01-16 10:50:07 +0100 (Tue, 16 Jan 2007) | 1 line Updated rotating file handlers to use _open(). ........ r53459 | marc-andre.lemburg | 2007-01-16 14:03:06 +0100 (Tue, 16 Jan 2007) | 2 lines Add news items for the recent pybench and platform changes. ........ r53460 | sjoerd.mullender | 2007-01-16 17:42:38 +0100 (Tue, 16 Jan 2007) | 4 lines Fixed ntpath.expandvars to not replace references to non-existing variables with nothing. Also added tests. This fixes bug #494589. ........ r53464 | neal.norwitz | 2007-01-17 07:23:51 +0100 (Wed, 17 Jan 2007) | 1 line Give Calvin Spealman access for python-dev summaries. ........ r53465 | neal.norwitz | 2007-01-17 09:37:26 +0100 (Wed, 17 Jan 2007) | 1 line Remove Calvin since he only has access to the website currently. ........ r53466 | thomas.heller | 2007-01-17 10:40:34 +0100 (Wed, 17 Jan 2007) | 2 lines Replace C++ comments with C comments. ........ r53472 | andrew.kuchling | 2007-01-17 20:55:06 +0100 (Wed, 17 Jan 2007) | 1 line [Part of bug #1599254] Add suggestion to Mailbox docs to use Maildir, and warn user to lock/unlock mailboxes when modifying them ........ r53475 | georg.brandl | 2007-01-17 22:09:04 +0100 (Wed, 17 Jan 2007) | 2 lines Bug #1637967: missing //= operator in list. ........ r53477 | georg.brandl | 2007-01-17 22:19:58 +0100 (Wed, 17 Jan 2007) | 2 lines Bug #1629125: fix wrong data type (int -> Py_ssize_t) in PyDict_Next docs. ........ r53481 | neal.norwitz | 2007-01-18 06:40:58 +0100 (Thu, 18 Jan 2007) | 1 line Try reverting part of r53145 that seems to cause the Windows buildbots to fail in test_uu.UUFileTest.test_encode ........ r53482 | fred.drake | 2007-01-18 06:42:30 +0100 (Thu, 18 Jan 2007) | 1 line add missing version entry ........ r53483 | neal.norwitz | 2007-01-18 07:20:55 +0100 (Thu, 18 Jan 2007) | 7 lines This test doesn't pass on Windows. The cause seems to be that chmod doesn't support the same funcationality as on Unix. I'm not sure if this fix is the best (or if it will even work)--it's a test to see if the buildbots start passing again. It might be better to not even run this test if it's windows (or non-posix). ........ r53488 | neal.norwitz | 2007-01-19 06:53:33 +0100 (Fri, 19 Jan 2007) | 1 line SF #1635217, Fix unbalanced paren ........ r53489 | martin.v.loewis | 2007-01-19 07:42:22 +0100 (Fri, 19 Jan 2007) | 3 lines Prefix AST symbols with _Py_. Fixes #1637022. Will backport. ........ r53497 | martin.v.loewis | 2007-01-19 19:01:38 +0100 (Fri, 19 Jan 2007) | 2 lines Add UUIDs for 2.5.1 and 2.5.2 ........ r53499 | raymond.hettinger | 2007-01-19 19:07:18 +0100 (Fri, 19 Jan 2007) | 1 line SF# 1635892: Fix docs for betavariate's input parameters . ........ r53503 | martin.v.loewis | 2007-01-20 15:05:39 +0100 (Sat, 20 Jan 2007) | 2 lines Merge 53501 and 53502 from 25 branch: Add /GS- for AMD64 and Itanium builds where missing. ........ r53504 | walter.doerwald | 2007-01-20 18:28:31 +0100 (Sat, 20 Jan 2007) | 2 lines Port test_resource.py to unittest. ........ r53505 | walter.doerwald | 2007-01-20 19:19:33 +0100 (Sat, 20 Jan 2007) | 2 lines Add argument tests an calls of resource.getrusage(). ........ r53506 | walter.doerwald | 2007-01-20 20:03:17 +0100 (Sat, 20 Jan 2007) | 2 lines resource.RUSAGE_BOTH might not exist. ........ r53507 | walter.doerwald | 2007-01-21 00:07:28 +0100 (Sun, 21 Jan 2007) | 2 lines Port test_new.py to unittest. ........ r53508 | martin.v.loewis | 2007-01-21 10:33:07 +0100 (Sun, 21 Jan 2007) | 2 lines Patch #1610575: Add support for _Bool to struct. ........ r53509 | georg.brandl | 2007-01-21 11:28:43 +0100 (Sun, 21 Jan 2007) | 3 lines Bug #1486663: don't reject keyword arguments for subclasses of builtin types. ........ r53511 | georg.brandl | 2007-01-21 11:35:10 +0100 (Sun, 21 Jan 2007) | 2 lines Patch #1627441: close sockets properly in urllib2. ........ r53517 | georg.brandl | 2007-01-22 20:40:21 +0100 (Mon, 22 Jan 2007) | 3 lines Use new email module names (#1637162, #1637159, #1637157). ........ r53518 | andrew.kuchling | 2007-01-22 21:26:40 +0100 (Mon, 22 Jan 2007) | 1 line Improve pattern used for mbox 'From' lines; add a simple test ........ r53519 | andrew.kuchling | 2007-01-22 21:27:50 +0100 (Mon, 22 Jan 2007) | 1 line Make comment match the code ........ r53522 | georg.brandl | 2007-01-22 22:10:33 +0100 (Mon, 22 Jan 2007) | 2 lines Bug #1249573: fix rfc822.parsedate not accepting a certain date format ........ r53524 | georg.brandl | 2007-01-22 22:23:41 +0100 (Mon, 22 Jan 2007) | 2 lines Bug #1627316: handle error in condition/ignore pdb commands more gracefully. ........ r53526 | lars.gustaebel | 2007-01-23 12:17:33 +0100 (Tue, 23 Jan 2007) | 4 lines Patch #1507247: tarfile.py: use current umask for intermediate directories. ........ r53527 | thomas.wouters | 2007-01-23 14:42:00 +0100 (Tue, 23 Jan 2007) | 13 lines SF patch #1630975: Fix crash when replacing sys.stdout in sitecustomize When running the interpreter in an environment that would cause it to set stdout/stderr/stdin's encoding, having a sitecustomize that would replace them with something other than PyFile objects would crash the interpreter. Fix it by simply ignoring the encoding-setting for non-files. This could do with a test, but I can think of no maintainable and portable way to test this bug, short of adding a sitecustomize.py to the buildsystem and have it always run with it (hmmm....) ........ r53528 | thomas.wouters | 2007-01-23 14:50:49 +0100 (Tue, 23 Jan 2007) | 4 lines Add news entry about last checkin (oops.) ........ r53531 | martin.v.loewis | 2007-01-23 22:11:47 +0100 (Tue, 23 Jan 2007) | 4 lines Make PyTraceBack_Here use the current thread, not the frame's thread state. Fixes #1579370. Will backport. ........ r53535 | brett.cannon | 2007-01-24 00:21:22 +0100 (Wed, 24 Jan 2007) | 5 lines Fix crasher for when an object's __del__ creates a new weakref to itself. Patch only fixes new-style classes; classic classes still buggy. Closes bug #1377858. Already backported. ........ r53536 | walter.doerwald | 2007-01-24 01:42:19 +0100 (Wed, 24 Jan 2007) | 2 lines Port test_popen.py to unittest. ........
2007-02-01 14:02:27 -04:00
if (type == &Random_Type && !_PyArg_NoKeywords("Random()", kwds))
return NULL;
self = (RandomObject *)type->tp_alloc(type, 0);
if (self == NULL)
return NULL;
tmp = random_seed(self, args);
if (tmp == NULL) {
Py_DECREF(self);
return NULL;
}
Py_DECREF(tmp);
return (PyObject *)self;
}
static PyMethodDef random_methods[] = {
{"random", (PyCFunction)random_random, METH_NOARGS,
PyDoc_STR("random() -> x in the interval [0, 1).")},
{"seed", (PyCFunction)random_seed, METH_VARARGS,
PyDoc_STR("seed([n]) -> None. Defaults to current time.")},
{"getstate", (PyCFunction)random_getstate, METH_NOARGS,
PyDoc_STR("getstate() -> tuple containing the current state.")},
{"setstate", (PyCFunction)random_setstate, METH_O,
PyDoc_STR("setstate(state) -> None. Restores generator state.")},
{"getrandbits", (PyCFunction)random_getrandbits, METH_VARARGS,
PyDoc_STR("getrandbits(k) -> x. Generates a long int with "
"k random bits.")},
{NULL, NULL} /* sentinel */
};
PyDoc_STRVAR(random_doc,
"Random() -> create a random number generator with its own internal state.");
static PyTypeObject Random_Type = {
PyVarObject_HEAD_INIT(NULL, 0)
"_random.Random", /*tp_name*/
sizeof(RandomObject), /*tp_basicsize*/
0, /*tp_itemsize*/
/* methods */
0, /*tp_dealloc*/
0, /*tp_print*/
0, /*tp_getattr*/
0, /*tp_setattr*/
0, /*tp_reserved*/
0, /*tp_repr*/
0, /*tp_as_number*/
0, /*tp_as_sequence*/
0, /*tp_as_mapping*/
0, /*tp_hash*/
0, /*tp_call*/
0, /*tp_str*/
PyObject_GenericGetAttr, /*tp_getattro*/
0, /*tp_setattro*/
0, /*tp_as_buffer*/
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
random_doc, /*tp_doc*/
0, /*tp_traverse*/
0, /*tp_clear*/
0, /*tp_richcompare*/
0, /*tp_weaklistoffset*/
0, /*tp_iter*/
0, /*tp_iternext*/
random_methods, /*tp_methods*/
0, /*tp_members*/
0, /*tp_getset*/
0, /*tp_base*/
0, /*tp_dict*/
0, /*tp_descr_get*/
0, /*tp_descr_set*/
0, /*tp_dictoffset*/
0, /*tp_init*/
0, /*tp_alloc*/
random_new, /*tp_new*/
2007-08-19 19:48:23 -03:00
PyObject_Free, /*tp_free*/
0, /*tp_is_gc*/
};
PyDoc_STRVAR(module_doc,
"Module implements the Mersenne Twister random number generator.");
static struct PyModuleDef _randommodule = {
PyModuleDef_HEAD_INIT,
"_random",
module_doc,
-1,
NULL,
NULL,
NULL,
NULL,
NULL
};
PyMODINIT_FUNC
PyInit__random(void)
{
PyObject *m;
if (PyType_Ready(&Random_Type) < 0)
return NULL;
m = PyModule_Create(&_randommodule);
if (m == NULL)
return NULL;
Py_INCREF(&Random_Type);
PyModule_AddObject(m, "Random", (PyObject *)&Random_Type);
return m;
}