本文整理汇总了C++中PyNumber_Add函数的典型用法代码示例。如果您正苦于以下问题：C++ PyNumber_Add函数的具体用法？C++ PyNumber_Add怎么用？C++ PyNumber_Add使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了PyNumber_Add函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1: longrangeiter_next
static PyObject *
longrangeiter_next(longrangeiterobject *r)
{
PyObject *one, *product, *new_index, *result;
if (PyObject_RichCompareBool(r->index, r->len, Py_LT) != 1)
return NULL;
one = PyLong_FromLong(1);
if (!one)
return NULL;
new_index = PyNumber_Add(r->index, one);
Py_DECREF(one);
if (!new_index)
return NULL;
product = PyNumber_Multiply(r->index, r->step);
if (!product) {
Py_DECREF(new_index);
return NULL;
}
result = PyNumber_Add(r->start, product);
Py_DECREF(product);
if (result) {
Py_XSETREF(r->index, new_index);
}
else {
Py_DECREF(new_index);
}
return result;
}
开发者ID:PiJoules，项目名称:cpython-modified，代码行数:33，代码来源:rangeobject.c
示例2: PyNumber_Add
//! Addition
RCP<const Number> PyNumber::add(const Number &other) const {
PyObject *other_p, *result;
if (is_a<PyNumber>(other)) {
other_p = static_cast<const PyNumber &>(other).pyobject_;
result = PyNumber_Add(pyobject_, other_p);
} else {
other_p = pymodule_->to_py_(other.rcp_from_this_cast<const Basic>());
result = PyNumber_Add(pyobject_, other_p);
Py_XDECREF(other_p);
}
return make_rcp<PyNumber>(result, pymodule_);
}
开发者ID:cbehan，项目名称:symengine.py，代码行数:13，代码来源:pywrapper.cpp
示例3: Proxy__WRAPPED_REPLACE_OR_RETURN_NULL
static PyObject *Proxy_add(PyObject *o1, PyObject *o2)
{
Proxy__WRAPPED_REPLACE_OR_RETURN_NULL(o1);
Proxy__WRAPPED_REPLACE_OR_RETURN_NULL(o2);
return PyNumber_Add(o1, o2);
}
开发者ID:FeodorFitsner，项目名称:python-lazy-object-proxy，代码行数:7，代码来源:cext.c
示例4: longrangeiter_reduce
static PyObject *
longrangeiter_reduce(longrangeiterobject *r)
{
PyObject *product, *stop=NULL;
PyObject *range;
/* create a range object for pickling. Must calculate the "stop" value */
product = PyNumber_Multiply(r->len, r->step);
if (product == NULL)
return NULL;
stop = PyNumber_Add(r->start, product);
Py_DECREF(product);
if (stop == NULL)
return NULL;
Py_INCREF(r->start);
Py_INCREF(r->step);
range = (PyObject*)make_range_object(&PyRange_Type,
r->start, stop, r->step);
if (range == NULL) {
Py_DECREF(r->start);
Py_DECREF(stop);
Py_DECREF(r->step);
return NULL;
}
/* return the result */
return Py_BuildValue("N(N)O", _PyObject_GetBuiltin("iter"), range, r->index);
}
开发者ID:PiJoules，项目名称:cpython-modified，代码行数:28，代码来源:rangeobject.c
示例5: compute_range_item
static PyObject *
compute_range_item(rangeobject *r, PyObject *arg)
{
int cmp_result;
PyObject *i, *result;
PyObject *zero = PyLong_FromLong(0);
if (zero == NULL)
return NULL;
/* PyLong equivalent to:
* if (arg < 0) {
* i = r->length + arg
* } else {
* i = arg
* }
*/
cmp_result = PyObject_RichCompareBool(arg, zero, Py_LT);
if (cmp_result == -1) {
Py_DECREF(zero);
return NULL;
}
if (cmp_result == 1) {
i = PyNumber_Add(r->length, arg);
if (!i) {
Py_DECREF(zero);
return NULL;
}
} else {
i = arg;
Py_INCREF(i);
}
/* PyLong equivalent to:
* if (i < 0 || i >= r->length) {
* <report index out of bounds>
* }
*/
cmp_result = PyObject_RichCompareBool(i, zero, Py_LT);
Py_DECREF(zero);
if (cmp_result == 0) {
cmp_result = PyObject_RichCompareBool(i, r->length, Py_GE);
}
if (cmp_result == -1) {
Py_DECREF(i);
return NULL;
}
if (cmp_result == 1) {
Py_DECREF(i);
PyErr_SetString(PyExc_IndexError,
"range object index out of range");
return NULL;
}
result = compute_item(r, i);
Py_DECREF(i);
return result;
}
开发者ID:PiJoules，项目名称:cpython-modified，代码行数:58，代码来源:rangeobject.c
示例6: second_func
static PyObject*
second_func(PyObject *self, PyObject *args)
{
PyObject *a, *b;
if (!PyArg_UnpackTuple(args, "func", 2, 2, &a, &b)) {
return NULL;
}
return PyNumber_Add(a, b);
}
开发者ID:bwang2453，项目名称:nwchem_csx，代码行数:11，代码来源:nwchem_wrap.c
示例7: compute_item
static PyObject *
compute_item(rangeobject *r, PyObject *i)
{
PyObject *incr, *result;
/* PyLong equivalent to:
* return r->start + (i * r->step)
*/
incr = PyNumber_Multiply(i, r->step);
if (!incr)
return NULL;
result = PyNumber_Add(r->start, incr);
Py_DECREF(incr);
return result;
}
开发者ID:PiJoules，项目名称:cpython-modified，代码行数:14，代码来源:rangeobject.c
示例8: entity_init
entity_init(EntityObject *self, PyObject *documentURI)
{
PyObject *creationIndex, *unparsed_entities;
if (documentURI == NULL || !XmlString_NullCheck(documentURI)) {
PyErr_BadInternalCall();
Py_DECREF(self);
return NULL;
}
creationIndex = PyNumber_Add(creation_counter, counter_inc);
if (creationIndex == NULL) {
Py_DECREF(self);
return NULL;
}
unparsed_entities = PyDict_New();
if (unparsed_entities == NULL) {
Py_DECREF(creationIndex);
Py_DECREF(self);
return NULL;
}
if (documentURI == Py_None) {
documentURI = PyUnicode_FromUnicode(NULL, 0);
if (documentURI == NULL) {
Py_DECREF(creationIndex);
Py_DECREF(unparsed_entities);
Py_DECREF(self);
return NULL;
}
} else {
Py_INCREF(documentURI);
}
self->creationIndex = creationIndex;
self->unparsed_entities = unparsed_entities;
Entity_SET_DOCUMENT_URI(self, documentURI);
Entity_SET_PUBLIC_ID(self, Py_None);
Py_INCREF(Py_None);
Entity_SET_SYSTEM_ID(self, Py_None);
Py_INCREF(Py_None);
/* update creation counter */
Py_INCREF(creationIndex);
Py_DECREF(creation_counter);
creation_counter = creationIndex;
return self;
}
开发者ID:abed-hawa，项目名称:amara，代码行数:50，代码来源:entity.c
示例9: fibo_iter
static PyObject*
fibo_iter(PyObject* self,PyObject *args){
// the numbers to be added
PyObject *first_num;
PyObject *second_num;
PyObject *tmp_res;
long int fibo_number,i;
if (!PyArg_ParseTuple(args, "l", &fibo_number))
return NULL;
//printf("\nThe value to compute is %ld",fibo_number);
if(fibo_number == 0 || fibo_number == 1)
return Py_BuildValue("l",fibo_number);
//Dont forget to decref ...
first_num = Py_BuildValue("l",0);
second_num = Py_BuildValue("l",1);
//PyObject_Print(first_num, stdout, 0);
//printf("\n\n");
//PyObject_Print(second_num, stdout, 0);
//printf("\n\n");
//computes the fibo iteratively
for (i=1;i<fibo_number;i++){
//we have a new reference
tmp_res = PyNumber_Add(first_num,second_num);
Py_INCREF(second_num);
Py_XDECREF(first_num);
first_num = second_num;
Py_INCREF(tmp_res);
Py_XDECREF(second_num);
second_num = tmp_res;
//give back the reference
Py_XDECREF(tmp_res);
}
Py_XDECREF(first_num);
return second_num;
}
开发者ID:makkalot，项目名称:pyalgorithm，代码行数:47，代码来源:fibo.c
示例10: Py_INCREF
/* Implementation of rowe_1 */
static PyObject *__pyx_f_6rowe_1_function(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
static PyObject *__pyx_f_6rowe_1_function(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
PyObject *__pyx_v_data = 0;
PyObject *__pyx_v_a;
PyObject *__pyx_r;
PyObject *__pyx_1 = 0;
PyObject *__pyx_2 = 0;
int __pyx_3;
Py_ssize_t __pyx_4;
Py_ssize_t __pyx_5;
static char *__pyx_argnames[] = {"data",0};
if (!PyArg_ParseTupleAndKeywords(__pyx_args, __pyx_kwds, "O", __pyx_argnames, &__pyx_v_data)) return 0;
Py_INCREF(__pyx_v_data);
__pyx_v_a = Py_None; Py_INCREF(Py_None);
/* "/Local/Projects/D/Pyrex/Source/Tests/Bugs/other/rowe_1.pyx":7 */
__pyx_1 = PyInt_FromLong(4); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 7; goto __pyx_L1;}
__pyx_2 = PyNumber_Multiply(__pyx_1, __pyx_v_a); if (!__pyx_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 7; goto __pyx_L1;}
Py_DECREF(__pyx_1); __pyx_1 = 0;
__pyx_3 = PyInt_AsLong(__pyx_2); if (PyErr_Occurred()) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 7; goto __pyx_L1;}
Py_DECREF(__pyx_2); __pyx_2 = 0;
blarg(__pyx_3);
/* "/Local/Projects/D/Pyrex/Source/Tests/Bugs/other/rowe_1.pyx":8 */
__pyx_4 = PyInt_AsSsize_t(__pyx_v_a); if (PyErr_Occurred()) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 8; goto __pyx_L1;}
__pyx_1 = __Pyx_GetName(__pyx_b, __pyx_n_b); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 8; goto __pyx_L1;}
__pyx_2 = PyNumber_Add(__pyx_v_a, __pyx_1); if (!__pyx_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 8; goto __pyx_L1;}
Py_DECREF(__pyx_1); __pyx_1 = 0;
__pyx_5 = PyInt_AsSsize_t(__pyx_2); if (PyErr_Occurred()) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 8; goto __pyx_L1;}
Py_DECREF(__pyx_2); __pyx_2 = 0;
__pyx_1 = PySequence_GetSlice(__pyx_v_data, __pyx_4, __pyx_5); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 8; goto __pyx_L1;}
__pyx_r = __pyx_1;
__pyx_1 = 0;
goto __pyx_L0;
__pyx_r = Py_None; Py_INCREF(Py_None);
goto __pyx_L0;
__pyx_L1:;
Py_XDECREF(__pyx_1);
Py_XDECREF(__pyx_2);
__Pyx_AddTraceback("rowe_1.function");
__pyx_r = 0;
__pyx_L0:;
Py_DECREF(__pyx_v_a);
Py_DECREF(__pyx_v_data);
return __pyx_r;
}
开发者ID:jwilk，项目名称:Pyrex，代码行数:49，代码来源:rowe_1.c
示例11: __pyx_init_filenames
/* Implementation of concatcstrings */
static struct PyMethodDef __pyx_methods[] = {
{0, 0, 0, 0}
};
static void __pyx_init_filenames(void); /*proto*/
PyMODINIT_FUNC initconcatcstrings(void); /*proto*/
PyMODINIT_FUNC initconcatcstrings(void) {
PyObject *__pyx_1 = 0;
__pyx_init_filenames();
__pyx_m = Py_InitModule4("concatcstrings", __pyx_methods, 0, 0, PYTHON_API_VERSION);
if (!__pyx_m) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; goto __pyx_L1;};
Py_INCREF(__pyx_m);
__pyx_b = PyImport_AddModule("__builtin__");
if (!__pyx_b) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; goto __pyx_L1;};
if (PyObject_SetAttrString(__pyx_m, "__builtins__", __pyx_b) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; goto __pyx_L1;};
if (__Pyx_InitStrings(__pyx_string_tab) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; goto __pyx_L1;};
__pyx_1 = PyNumber_Add(__pyx_k1p, __pyx_k2p); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; goto __pyx_L1;}
if (PyObject_SetAttr(__pyx_m, __pyx_n_spam, __pyx_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; goto __pyx_L1;}
Py_DECREF(__pyx_1); __pyx_1 = 0;
return;
__pyx_L1:;
Py_XDECREF(__pyx_1);
__Pyx_AddTraceback("concatcstrings");
}
开发者ID:jwilk，项目名称:Pyrex，代码行数:27，代码来源:concatcstrings.c
示例12: test_PythonAPI
void test_PythonAPI()
{
double a_ = 3.4;
PyObject* a = PyFloat_FromDouble(a_);
PyObject* b = PyFloat_FromDouble(7);
PyObject* c = PyNumber_Add(a, b);
PyObject* list = PyList_New(0);
PyList_Append(list, a);
PyList_Append(list, c);
PyList_Append(list, b);
PyObject* tp = PyList_AsTuple(list);
int tp_len = PySequence_Length(tp);
for (int i=0; i<tp_len; i++) {
PyObject* qp = PySequence_GetItem(tp, i);
double q = PyFloat_AS_DOUBLE(qp);
std::cout << "tp[" << i << "]=" << q << " ";
}
std::cout << std::endl;
}
开发者ID:HunterAllman，项目名称:kod，代码行数:19，代码来源:scxx_demo.cpp
示例13: enum_next_long
static PyObject *
enum_next_long(enumobject *en, PyObject* next_item)
{
static PyObject *one = NULL;
PyObject *result = en->en_result;
PyObject *next_index;
PyObject *stepped_up;
if (en->en_longindex == NULL) {
en->en_longindex = PyInt_FromSsize_t(PY_SSIZE_T_MAX);
if (en->en_longindex == NULL)
return NULL;
}
if (one == NULL) {
one = PyInt_FromLong(1);
if (one == NULL)
return NULL;
}
next_index = en->en_longindex;
assert(next_index != NULL);
stepped_up = PyNumber_Add(next_index, one);
if (stepped_up == NULL)
return NULL;
en->en_longindex = stepped_up;
if (result->ob_refcnt == 1) {
Py_INCREF(result);
Py_DECREF(PyTuple_GET_ITEM(result, 0));
Py_DECREF(PyTuple_GET_ITEM(result, 1));
} else {
result = PyTuple_New(2);
if (result == NULL) {
Py_DECREF(next_index);
Py_DECREF(next_item);
return NULL;
}
}
PyTuple_SET_ITEM(result, 0, next_index);
PyTuple_SET_ITEM(result, 1, next_item);
return result;
}
开发者ID:Vignesh2736，项目名称:IncPy，代码行数:41，代码来源:enumobject.c
示例14: build_128bit_long
static PyObject* build_128bit_long(guint64 values[2])
{
PyObject *res, *x, *y;
res = PyL_ULL(values[0]); /* res = values[0] */
x = PyI_L(64); /* x = 64 */
y = PyNumber_Lshift(res, x); /* y = res << x */
Py_DECREF(x);
Py_DECREF(res); /* res = y */
res = y;
x = PyL_ULL(values[1]); /* x = values[1] */
y = PyNumber_Add(res, x); /* y = res + x */
Py_DECREF(x); /* res = y */
Py_DECREF(res);
res = y;
return res;
}
开发者ID:ZevenOS，项目名称:wnck-patches，代码行数:24，代码来源:gtop.c
示例15: binop
/* Replace LOAD_CONST c1. LOAD_CONST c2 BINOP
with LOAD_CONST binop(c1,c2)
The consts table must still be in list form so that the
new constant can be appended.
Called with codestr pointing to the BINOP.
Abandons the transformation if the folding fails (i.e. 1+'a').
If the new constant is a sequence, only folds when the size
is below a threshold value. That keeps pyc files from
becoming large in the presence of code like: (None,)*1000.
*/
static int
fold_binops_on_constants(unsigned char *codestr, PyObject *consts, PyObject **objs)
{
PyObject *newconst, *v, *w;
Py_ssize_t len_consts, size;
int opcode;
/* Pre-conditions */
assert(PyList_CheckExact(consts));
/* Create new constant */
v = objs[0];
w = objs[1];
opcode = codestr[0];
switch (opcode) {
case BINARY_POWER:
newconst = PyNumber_Power(v, w, Py_None);
break;
case BINARY_MULTIPLY:
newconst = PyNumber_Multiply(v, w);
break;
case BINARY_TRUE_DIVIDE:
newconst = PyNumber_TrueDivide(v, w);
break;
case BINARY_FLOOR_DIVIDE:
newconst = PyNumber_FloorDivide(v, w);
break;
case BINARY_MODULO:
newconst = PyNumber_Remainder(v, w);
break;
case BINARY_ADD:
newconst = PyNumber_Add(v, w);
break;
case BINARY_SUBTRACT:
newconst = PyNumber_Subtract(v, w);
break;
case BINARY_SUBSCR:
newconst = PyObject_GetItem(v, w);
break;
case BINARY_LSHIFT:
newconst = PyNumber_Lshift(v, w);
break;
case BINARY_RSHIFT:
newconst = PyNumber_Rshift(v, w);
break;
case BINARY_AND:
newconst = PyNumber_And(v, w);
break;
case BINARY_XOR:
newconst = PyNumber_Xor(v, w);
break;
case BINARY_OR:
newconst = PyNumber_Or(v, w);
break;
default:
/* Called with an unknown opcode */
PyErr_Format(PyExc_SystemError,
"unexpected binary operation %d on a constant",
opcode);
return 0;
}
if (newconst == NULL) {
if(!PyErr_ExceptionMatches(PyExc_KeyboardInterrupt))
PyErr_Clear();
return 0;
}
size = PyObject_Size(newconst);
if (size == -1) {
if (PyErr_ExceptionMatches(PyExc_KeyboardInterrupt))
return 0;
PyErr_Clear();
} else if (size > 20) {
Py_DECREF(newconst);
return 0;
}
/* Append folded constant into consts table */
len_consts = PyList_GET_SIZE(consts);
if (PyList_Append(consts, newconst)) {
Py_DECREF(newconst);
return 0;
}
Py_DECREF(newconst);
/* Write NOP NOP NOP NOP LOAD_CONST newconst */
codestr[-2] = LOAD_CONST;
SETARG(codestr, -2, len_consts);
return 1;
}
开发者ID:1564143452，项目名称:kbengine，代码行数:99，代码来源:peephole.c
示例16: binop
/* Replace LOAD_CONST c1. LOAD_CONST c2 BINOP
with LOAD_CONST binop(c1,c2)
The consts table must still be in list form so that the
new constant can be appended.
Called with codestr pointing to the first LOAD_CONST.
Abandons the transformation if the folding fails (i.e. 1+'a').
If the new constant is a sequence, only folds when the size
is below a threshold value. That keeps pyc files from
becoming large in the presence of code like: (None,)*1000.
*/
static int
fold_binops_on_constants(unsigned char *codestr, PyObject *consts)
{
PyObject *newconst, *v, *w;
Py_ssize_t len_consts, size;
int opcode;
/* Pre-conditions */
assert(PyList_CheckExact(consts));
assert(codestr[0] == LOAD_CONST);
assert(codestr[3] == LOAD_CONST);
/* Create new constant */
v = PyList_GET_ITEM(consts, GETARG(codestr, 0));
w = PyList_GET_ITEM(consts, GETARG(codestr, 3));
opcode = codestr[6];
switch (opcode) {
case BINARY_POWER:
newconst = PyNumber_Power(v, w, Py_None);
break;
case BINARY_MULTIPLY:
newconst = PyNumber_Multiply(v, w);
break;
case BINARY_DIVIDE:
/* Cannot fold this operation statically since
the result can depend on the run-time presence
of the -Qnew flag */
return 0;
case BINARY_TRUE_DIVIDE:
newconst = PyNumber_TrueDivide(v, w);
break;
case BINARY_FLOOR_DIVIDE:
newconst = PyNumber_FloorDivide(v, w);
break;
case BINARY_MODULO:
newconst = PyNumber_Remainder(v, w);
break;
case BINARY_ADD:
newconst = PyNumber_Add(v, w);
break;
case BINARY_SUBTRACT:
newconst = PyNumber_Subtract(v, w);
break;
case BINARY_SUBSCR:
newconst = PyObject_GetItem(v, w);
break;
case BINARY_LSHIFT:
newconst = PyNumber_Lshift(v, w);
break;
case BINARY_RSHIFT:
newconst = PyNumber_Rshift(v, w);
break;
case BINARY_AND:
newconst = PyNumber_And(v, w);
break;
case BINARY_XOR:
newconst = PyNumber_Xor(v, w);
break;
case BINARY_OR:
newconst = PyNumber_Or(v, w);
break;
default:
/* Called with an unknown opcode */
PyErr_Format(PyExc_SystemError,
"unexpected binary operation %d on a constant",
opcode);
return 0;
}
if (newconst == NULL) {
PyErr_Clear();
return 0;
}
size = PyObject_Size(newconst);
if (size == -1)
PyErr_Clear();
else if (size > 20) {
Py_DECREF(newconst);
return 0;
}
/* Append folded constant into consts table */
len_consts = PyList_GET_SIZE(consts);
if (PyList_Append(consts, newconst)) {
Py_DECREF(newconst);
return 0;
}
Py_DECREF(newconst);
/* Write NOP NOP NOP NOP LOAD_CONST newconst */
memset(codestr, NOP, 4);
//.........这里部分代码省略.........
开发者ID:Androtos，项目名称:toolchain_benchmark，代码行数:101，代码来源:peephole.c
示例17: _PySlice_GetLongIndices
int
_PySlice_GetLongIndices(PySliceObject *self, PyObject *length,
PyObject **start_ptr, PyObject **stop_ptr,
PyObject **step_ptr)
{
PyObject *start=NULL, *stop=NULL, *step=NULL;
PyObject *upper=NULL, *lower=NULL;
int step_is_negative, cmp_result;
/* Convert step to an integer; raise for zero step. */
if (self->step == Py_None) {
step = _PyLong_One;
Py_INCREF(step);
step_is_negative = 0;
}
else {
int step_sign;
step = evaluate_slice_index(self->step);
if (step == NULL)
goto error;
step_sign = _PyLong_Sign(step);
if (step_sign == 0) {
PyErr_SetString(PyExc_ValueError,
"slice step cannot be zero");
goto error;
}
step_is_negative = step_sign < 0;
}
/* Find lower and upper bounds for start and stop. */
if (step_is_negative) {
lower = PyLong_FromLong(-1L);
if (lower == NULL)
goto error;
upper = PyNumber_Add(length, lower);
if (upper == NULL)
goto error;
}
else {
lower = _PyLong_Zero;
Py_INCREF(lower);
upper = length;
Py_INCREF(upper);
}
/* Compute start. */
if (self->start == Py_None) {
start = step_is_negative ? upper : lower;
Py_INCREF(start);
}
else {
start = evaluate_slice_index(self->start);
if (start == NULL)
goto error;
if (_PyLong_Sign(start) < 0) {
/* start += length */
PyObject *tmp = PyNumber_Add(start, length);
Py_DECREF(start);
start = tmp;
if (start == NULL)
goto error;
cmp_result = PyObject_RichCompareBool(start, lower, Py_LT);
if (cmp_result < 0)
goto error;
if (cmp_result) {
Py_INCREF(lower);
Py_DECREF(start);
start = lower;
}
}
else {
cmp_result = PyObject_RichCompareBool(start, upper, Py_GT);
if (cmp_result < 0)
goto error;
if (cmp_result) {
Py_INCREF(upper);
Py_DECREF(start);
start = upper;
}
}
}
/* Compute stop. */
if (self->stop == Py_None) {
stop = step_is_negative ? lower : upper;
Py_INCREF(stop);
}
else {
stop = evaluate_slice_index(self->stop);
if (stop == NULL)
goto error;
if (_PyLong_Sign(stop) < 0) {
/* stop += length */
PyObject *tmp = PyNumber_Add(stop, length);
Py_DECREF(stop);
stop = tmp;
//.........这里部分代码省略.........
开发者ID:adrian17，项目名称:cpython，代码行数:101，代码来源:sliceobject.c
示例18: compute_range_length
/* Return number of items in range (lo, hi, step) as a PyLong object,
* when arguments are PyLong objects. Arguments MUST return 1 with
* PyLong_Check(). Return NULL when there is an error.
*/
static PyObject*
compute_range_length(PyObject *start, PyObject *stop, PyObject *step)
{
/* -------------------------------------------------------------
Algorithm is equal to that of get_len_of_range(), but it operates
on PyObjects (which are assumed to be PyLong objects).
---------------------------------------------------------------*/
int cmp_result;
PyObject *lo, *hi;
PyObject *diff = NULL;
PyObject *one = NULL;
PyObject *tmp1 = NULL, *tmp2 = NULL, *result;
/* holds sub-expression evaluations */
PyObject *zero = PyLong_FromLong(0);
if (zero == NULL)
return NULL;
cmp_result = PyObject_RichCompareBool(step, zero, Py_GT);
Py_DECREF(zero);
if (cmp_result == -1)
return NULL;
if (cmp_result == 1) {
lo = start;
hi = stop;
Py_INCREF(step);
} else {
lo = stop;
hi = start;
step = PyNumber_Negative(step);
if (!step)
return NULL;
}
/* if (lo >= hi), return length of 0. */
cmp_result = PyObject_RichCompareBool(lo, hi, Py_GE);
if (cmp_result != 0) {
Py_XDECREF(step);
if (cmp_result < 0)
return NULL;
return PyLong_FromLong(0);
}
if ((one = PyLong_FromLong(1L)) == NULL)
goto Fail;
if ((tmp1 = PyNumber_Subtract(hi, lo)) == NULL)
goto Fail;
if ((diff = PyNumber_Subtract(tmp1, one)) == NULL)
goto Fail;
if ((tmp2 = PyNumber_FloorDivide(diff, step)) == NULL)
goto Fail;
if ((result = PyNumber_Add(tmp2, one)) == NULL)
goto Fail;
Py_DECREF(tmp2);
Py_DECREF(diff);
Py_DECREF(step);
Py_DECREF(tmp1);
Py_DECREF(one);
return result;
Fail:
Py_XDECREF(tmp2);
Py_XDECREF(diff);
Py_XDECREF(step);
Py_XDECREF(tmp1);
Py_XDECREF(one);
return NULL;
}
开发者ID:PiJoules，项目名称:cpython-modified，代码行数:77，代码来源:rangeobject.c
示例19: Py_INCREF
static PyObject *__pyx_f_7Stemmer_7Stemmer_stemWord(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
PyObject *__pyx_v_word = 0;
char *__pyx_v_c_word;
PyObject *__pyx_v_was_unicode;
PyObject *__pyx_v_cacheditem;
PyObject *__pyx_v_result;
PyObject *__pyx_v_length;
PyObject *__pyx_r;
PyObject *__pyx_1 = 0;
int __pyx_2;
PyObject *__pyx_3 = 0;
PyObject *__pyx_4 = 0;
char *__pyx_5;
Py_ssize_t __pyx_6;
PyObject *__pyx_7 = 0;
PyObject *__pyx_8 = 0;
static char *__pyx_argnames[] = {"word",0};
if (!PyArg_ParseTupleAndKeywords(__pyx_args, __pyx_kwds, "O", __pyx_argnames, &__pyx_v_word)) return 0;
Py_INCREF(__pyx_v_self);
Py_INCREF(__pyx_v_word);
__pyx_v_was_unicode = Py_None; Py_INCREF(Py_None);
__pyx_v_cacheditem = Py_None; Py_INCREF(Py_None);
__pyx_v_result = Py_None; Py_INCREF(Py_None);
__pyx_v_length = Py_None; Py_INCREF(Py_None);
/* "/home/richard/private/Working/snowball/pystemmer/src/Stemmer.pyx":171 */
__pyx_1 = PyInt_FromLong(0); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 171; goto __pyx_L1;}
Py_DECREF(__pyx_v_was_unicode);
__pyx_v_was_unicode = __pyx_1;
__pyx_1 = 0;
/* "/home/richard/private/Working/snowball/pystemmer/src/Stemmer.pyx":172 */
__pyx_1 = __Pyx_GetName(__pyx_b, __pyx_n_unicode); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 172; goto __pyx_L1;}
__pyx_2 = PyObject_IsInstance(__pyx_v_word,__pyx_1); if (__pyx_2 == -1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 172; goto __pyx_L1;}
Py_DECREF(__pyx_1); __pyx_1 = 0;
if (__pyx_2) {
/* "/home/richard/private/Working/snowball/pystemmer/src/Stemmer.pyx":173 */
__pyx_1 = PyInt_FromLong(1); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 173; goto __pyx_L1;}
Py_DECREF(__pyx_v_was_unicode);
__pyx_v_was_unicode = __pyx_1;
__pyx_1 = 0;
/* "/home/richard/private/Working/snowball/pystemmer/src/Stemmer.pyx":174 */
__pyx_1 = PyObject_GetAttr(__pyx_v_word, __pyx_n_encode); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 174; goto __pyx_L1;}
__pyx_3 = PyTuple_New(1); if (!__pyx_3) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 174; goto __pyx_L1;}
Py_INCREF(__pyx_k9p);
PyTuple_SET_ITEM(__pyx_3, 0, __pyx_k9p);
__pyx_4 = PyObject_CallObject(__pyx_1, __pyx_3); if (!__pyx_4) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 174; goto __pyx_L1;}
Py_DECREF(__pyx_1); __pyx_1 = 0;
Py_DECREF(__pyx_3); __pyx_3 = 0;
Py_DECREF(__pyx_v_word);
__pyx_v_word = __pyx_4;
__pyx_4 = 0;
goto __pyx_L2;
}
__pyx_L2:;
/* "/home/richard/private/Working/snowball/pystemmer/src/Stemmer.pyx":176 */
__pyx_2 = (((struct __pyx_obj_7Stemmer_Stemmer *)__pyx_v_self)->max_cache_size > 0);
if (__pyx_2) {
/*try:*/ {
/* "/home/richard/private/Working/snowball/pystemmer/src/Stemmer.pyx":178 */
__pyx_1 = PyObject_GetItem(((struct __pyx_obj_7Stemmer_Stemmer *)__pyx_v_self)->cache, __pyx_v_word); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 178; goto __pyx_L4;}
Py_DECREF(__pyx_v_cacheditem);
__pyx_v_cacheditem = __pyx_1;
__pyx_1 = 0;
/* "/home/richard/private/Working/snowball/pystemmer/src/Stemmer.pyx":179 */
__pyx_3 = __Pyx_GetItemInt(__pyx_v_cacheditem, 0); if (!__pyx_3) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 179; goto __pyx_L4;}
Py_DECREF(__pyx_v_result);
__pyx_v_result = __pyx_3;
__pyx_3 = 0;
/* "/home/richard/private/Working/snowball/pystemmer/src/Stemmer.pyx":180 */
if (__Pyx_SetItemInt(__pyx_v_cacheditem, 1, ((struct __pyx_obj_7Stemmer_Stemmer *)__pyx_v_self)->counter) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 180; goto __pyx_L4;}
/* "/home/richard/private/Working/snowball/pystemmer/src/Stemmer.pyx":181 */
__pyx_4 = PyInt_FromLong(1); if (!__pyx_4) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 181; goto __pyx_L4;}
__pyx_1 = PyNumber_Add(((struct __pyx_obj_7Stemmer_Stemmer *)__pyx_v_self)->counter, __pyx_4); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 181; goto __pyx_L4;}
Py_DECREF(__pyx_4); __pyx_4 = 0;
Py_DECREF(((struct __pyx_obj_7Stemmer_Stemmer *)__pyx_v_self)->counter);
((struct __pyx_obj_7Stemmer_Stemmer *)__pyx_v_self)->counter = __pyx_1;
__pyx_1 = 0;
}
goto __pyx_L5;
__pyx_L4:;
Py_XDECREF(__pyx_3); __pyx_3 = 0;
Py_XDECREF(__pyx_4); __pyx_4 = 0;
Py_XDECREF(__pyx_1); __pyx_1 = 0;
/* "/home/richard/private/Working/snowball/pystemmer/src/Stemmer.pyx":182 */
__pyx_2 = PyErr_ExceptionMatches(PyExc_KeyError);
if (__pyx_2) {
__Pyx_AddTraceback("Stemmer.stemWord");
if (__Pyx_GetException(&__pyx_3, &__pyx_4, &__pyx_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 182; goto __pyx_L1;}
/* "/home/richard/private/Working/snowball/pystemmer/src/Stemmer.pyx":183 */
__pyx_5 = PyString_AsString(__pyx_v_word); if (!__pyx_5) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 183; goto __pyx_L1;}
//.........这里部分代码省略.........
开发者ID:buriy，项目名称:pystemmer，代码行数:101，代码来源:Stemmer.c
示例20: range_reverse
static PyObject *
range_reverse(PyObject *seq)
{
rangeobject *range = (rangeobject*) seq;
longrangeiterobject *it;
PyObject *one, *sum, *diff, *product;
long lstart, lstop, lstep, new_start, new_stop;
unsigned long ulen;
assert(PyRange_Check(seq));
/* reversed(range(start, stop, step)) can be expressed as
range(start+(n-1)*step, start-step, -step), where n is the number of
integers in the range.
If each of start, stop, step, -step, start-step, and the length
of the iterator is representable as a C long, use the int
version. This excludes some cases where the reversed range is
representable as a range_iterator, but it's good enough for
common cases and it makes the checks simple. */
lstart = PyLong_AsLong(range->start);
if (lstart == -1 && PyErr_Occurred()) {
PyErr_Clear();
goto long_range;
}
lstop = PyLong_AsLong(range->stop);
if (lstop == -1 && PyErr_Occurred()) {
PyErr_Clear();
goto long_range;
}
lstep = PyLong_AsLong(range->step);
if (lstep == -1 && PyErr_Occurred()) {
PyErr_Clear();
goto long_range;
}
/* check for possible overflow of -lstep */
if (lstep == LONG_MIN)
goto long_range;
/* check for overflow of lstart - lstep:
for lstep > 0, need only check whether lstart - lstep < LONG_MIN.
for lstep < 0, need only check whether lstart - lstep > LONG_MAX
Rearrange these inequalities as:
lstart - LONG_MIN < lstep (lstep > 0)
LONG_MAX - lstart < -lstep (lstep < 0)
and compute both sides as unsigned longs, to avoid the
possibility of undefined behaviour due to signed overflow. */
if (lstep > 0) {
if ((unsigned long)lstart - LONG_MIN < (unsigned long)lstep)
goto long_range;
}
else {
if (LONG_MAX - (unsigned long)lstart < 0UL - lstep)
goto long_range;
}
ulen = get_len_of_range(lstart, lstop, lstep);
if (ulen > (unsigned long)LONG_MAX)
goto long_range;
new_stop = lstart - lstep;
new_start = (long)(new_stop + ulen * lstep);
return fast_range_iter(new_start, new_stop, -lstep);
long_range:
it = PyObject_New(longrangeiterobject, &PyLongRangeIter_Type);
if (it == NULL)
return NULL;
/* start + (len - 1) * step */
it->len = range->length;
Py_INCREF(it->len);
one = PyLong_FromLong(1);
if (!one)
goto create_failure;
diff = PyNumber_Subtract(it->len, one);
Py_DECREF(one);
if (!diff)
goto create_failure;
product = PyNumber_Multiply(diff, range->step);
Py_DECREF(diff);
if (!product)
goto create_failure;
sum = PyNumber_Add(range->start, product);
Py_DECREF(product);
it->start = sum;
if (!it->start)
goto create_failure;
it->step = PyNumber_Negative(range->step);
//.........这里部分代码省略.........
开发者ID:PiJoules，项目名称:cpython-modified，代码行数:101，代码来源:rangeobject.c
注：本文中的PyNumber_Add函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。 |
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