AppPkg/Applications/Python/Python-2.7.10: Initial Checkin part 3/5.
The Objects directory from the cPython 2.7.10 distribution, along with the LICENSE and README files. These files are unchanged and set the baseline for subsequent commits. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Daryl McDaniel <edk2-lists@mc2research.org> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18739 6f19259b-4bc3-4df7-8a09-765794883524
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AppPkg/Applications/Python/Python-2.7.10/Objects/boolobject.c
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202
AppPkg/Applications/Python/Python-2.7.10/Objects/boolobject.c
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/* Boolean type, a subtype of int */
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#include "Python.h"
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/* We need to define bool_print to override int_print */
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static int
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bool_print(PyBoolObject *self, FILE *fp, int flags)
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{
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Py_BEGIN_ALLOW_THREADS
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fputs(self->ob_ival == 0 ? "False" : "True", fp);
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Py_END_ALLOW_THREADS
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return 0;
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}
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/* We define bool_repr to return "False" or "True" */
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static PyObject *false_str = NULL;
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static PyObject *true_str = NULL;
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static PyObject *
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bool_repr(PyBoolObject *self)
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{
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PyObject *s;
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if (self->ob_ival)
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s = true_str ? true_str :
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(true_str = PyString_InternFromString("True"));
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else
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s = false_str ? false_str :
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(false_str = PyString_InternFromString("False"));
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Py_XINCREF(s);
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return s;
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}
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/* Function to return a bool from a C long */
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PyObject *PyBool_FromLong(long ok)
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{
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PyObject *result;
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if (ok)
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result = Py_True;
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else
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result = Py_False;
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Py_INCREF(result);
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return result;
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}
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/* We define bool_new to always return either Py_True or Py_False */
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static PyObject *
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bool_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
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{
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static char *kwlist[] = {"x", 0};
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PyObject *x = Py_False;
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long ok;
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if (!PyArg_ParseTupleAndKeywords(args, kwds, "|O:bool", kwlist, &x))
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return NULL;
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ok = PyObject_IsTrue(x);
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if (ok < 0)
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return NULL;
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return PyBool_FromLong(ok);
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}
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/* Arithmetic operations redefined to return bool if both args are bool. */
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static PyObject *
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bool_and(PyObject *a, PyObject *b)
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{
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if (!PyBool_Check(a) || !PyBool_Check(b))
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return PyInt_Type.tp_as_number->nb_and(a, b);
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return PyBool_FromLong(
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((PyBoolObject *)a)->ob_ival & ((PyBoolObject *)b)->ob_ival);
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}
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static PyObject *
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bool_or(PyObject *a, PyObject *b)
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{
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if (!PyBool_Check(a) || !PyBool_Check(b))
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return PyInt_Type.tp_as_number->nb_or(a, b);
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return PyBool_FromLong(
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((PyBoolObject *)a)->ob_ival | ((PyBoolObject *)b)->ob_ival);
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}
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static PyObject *
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bool_xor(PyObject *a, PyObject *b)
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{
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if (!PyBool_Check(a) || !PyBool_Check(b))
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return PyInt_Type.tp_as_number->nb_xor(a, b);
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return PyBool_FromLong(
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((PyBoolObject *)a)->ob_ival ^ ((PyBoolObject *)b)->ob_ival);
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}
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/* Doc string */
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PyDoc_STRVAR(bool_doc,
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"bool(x) -> bool\n\
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\n\
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Returns True when the argument x is true, False otherwise.\n\
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The builtins True and False are the only two instances of the class bool.\n\
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The class bool is a subclass of the class int, and cannot be subclassed.");
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/* Arithmetic methods -- only so we can override &, |, ^. */
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static PyNumberMethods bool_as_number = {
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0, /* nb_add */
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0, /* nb_subtract */
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0, /* nb_multiply */
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0, /* nb_divide */
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0, /* nb_remainder */
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0, /* nb_divmod */
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0, /* nb_power */
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0, /* nb_negative */
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0, /* nb_positive */
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0, /* nb_absolute */
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0, /* nb_nonzero */
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0, /* nb_invert */
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0, /* nb_lshift */
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0, /* nb_rshift */
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bool_and, /* nb_and */
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bool_xor, /* nb_xor */
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bool_or, /* nb_or */
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0, /* nb_coerce */
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0, /* nb_int */
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0, /* nb_long */
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0, /* nb_float */
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0, /* nb_oct */
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0, /* nb_hex */
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0, /* nb_inplace_add */
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0, /* nb_inplace_subtract */
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0, /* nb_inplace_multiply */
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0, /* nb_inplace_divide */
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0, /* nb_inplace_remainder */
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0, /* nb_inplace_power */
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0, /* nb_inplace_lshift */
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0, /* nb_inplace_rshift */
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0, /* nb_inplace_and */
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0, /* nb_inplace_xor */
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0, /* nb_inplace_or */
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0, /* nb_floor_divide */
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0, /* nb_true_divide */
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0, /* nb_inplace_floor_divide */
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0, /* nb_inplace_true_divide */
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};
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/* The type object for bool. Note that this cannot be subclassed! */
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PyTypeObject PyBool_Type = {
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PyVarObject_HEAD_INIT(&PyType_Type, 0)
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"bool",
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sizeof(PyIntObject),
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0,
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0, /* tp_dealloc */
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(printfunc)bool_print, /* tp_print */
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0, /* tp_getattr */
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0, /* tp_setattr */
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0, /* tp_compare */
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(reprfunc)bool_repr, /* tp_repr */
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&bool_as_number, /* tp_as_number */
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0, /* tp_as_sequence */
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0, /* tp_as_mapping */
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0, /* tp_hash */
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0, /* tp_call */
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(reprfunc)bool_repr, /* tp_str */
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0, /* tp_getattro */
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0, /* tp_setattro */
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0, /* tp_as_buffer */
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Py_TPFLAGS_DEFAULT | Py_TPFLAGS_CHECKTYPES, /* tp_flags */
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bool_doc, /* tp_doc */
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0, /* tp_traverse */
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0, /* tp_clear */
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0, /* tp_richcompare */
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0, /* tp_weaklistoffset */
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0, /* tp_iter */
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0, /* tp_iternext */
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0, /* tp_methods */
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0, /* tp_members */
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0, /* tp_getset */
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&PyInt_Type, /* tp_base */
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0, /* tp_dict */
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0, /* tp_descr_get */
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0, /* tp_descr_set */
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0, /* tp_dictoffset */
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0, /* tp_init */
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0, /* tp_alloc */
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bool_new, /* tp_new */
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};
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/* The objects representing bool values False and True */
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/* Named Zero for link-level compatibility */
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PyIntObject _Py_ZeroStruct = {
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PyObject_HEAD_INIT(&PyBool_Type)
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0
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};
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PyIntObject _Py_TrueStruct = {
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PyObject_HEAD_INIT(&PyBool_Type)
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1
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};
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