symbian-qemu-0.9.1-12/python-2.6.1/Objects/boolobject.c
changeset 1 2fb8b9db1c86
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Objects/boolobject.c	Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,202 @@
+/* Boolean type, a subtype of int */
+
+#include "Python.h"
+
+/* We need to define bool_print to override int_print */
+
+static int
+bool_print(PyBoolObject *self, FILE *fp, int flags)
+{
+	Py_BEGIN_ALLOW_THREADS
+	fputs(self->ob_ival == 0 ? "False" : "True", fp);
+	Py_END_ALLOW_THREADS
+	return 0;
+}
+
+/* We define bool_repr to return "False" or "True" */
+
+static PyObject *false_str = NULL;
+static PyObject *true_str = NULL;
+
+static PyObject *
+bool_repr(PyBoolObject *self)
+{
+	PyObject *s;
+
+	if (self->ob_ival)
+		s = true_str ? true_str :
+			(true_str = PyString_InternFromString("True"));
+	else
+		s = false_str ? false_str :
+			(false_str = PyString_InternFromString("False"));
+	Py_XINCREF(s);
+	return s;
+}
+
+/* Function to return a bool from a C long */
+
+PyObject *PyBool_FromLong(long ok)
+{
+	PyObject *result;
+
+	if (ok)
+		result = Py_True;
+	else
+		result = Py_False;
+	Py_INCREF(result);
+	return result;
+}
+
+/* We define bool_new to always return either Py_True or Py_False */
+
+static PyObject *
+bool_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
+{
+	static char *kwlist[] = {"x", 0};
+	PyObject *x = Py_False;
+	long ok;
+
+	if (!PyArg_ParseTupleAndKeywords(args, kwds, "|O:bool", kwlist, &x))
+		return NULL;
+	ok = PyObject_IsTrue(x);
+	if (ok < 0)
+		return NULL;
+	return PyBool_FromLong(ok);
+}
+
+/* Arithmetic operations redefined to return bool if both args are bool. */
+
+static PyObject *
+bool_and(PyObject *a, PyObject *b)
+{
+	if (!PyBool_Check(a) || !PyBool_Check(b))
+		return PyInt_Type.tp_as_number->nb_and(a, b);
+	return PyBool_FromLong(
+		((PyBoolObject *)a)->ob_ival & ((PyBoolObject *)b)->ob_ival);
+}
+
+static PyObject *
+bool_or(PyObject *a, PyObject *b)
+{
+	if (!PyBool_Check(a) || !PyBool_Check(b))
+		return PyInt_Type.tp_as_number->nb_or(a, b);
+	return PyBool_FromLong(
+		((PyBoolObject *)a)->ob_ival | ((PyBoolObject *)b)->ob_ival);
+}
+
+static PyObject *
+bool_xor(PyObject *a, PyObject *b)
+{
+	if (!PyBool_Check(a) || !PyBool_Check(b))
+		return PyInt_Type.tp_as_number->nb_xor(a, b);
+	return PyBool_FromLong(
+		((PyBoolObject *)a)->ob_ival ^ ((PyBoolObject *)b)->ob_ival);
+}
+
+/* Doc string */
+
+PyDoc_STRVAR(bool_doc,
+"bool(x) -> bool\n\
+\n\
+Returns True when the argument x is true, False otherwise.\n\
+The builtins True and False are the only two instances of the class bool.\n\
+The class bool is a subclass of the class int, and cannot be subclassed.");
+
+/* Arithmetic methods -- only so we can override &, |, ^. */
+
+static PyNumberMethods bool_as_number = {
+	0,			/* nb_add */
+	0,			/* nb_subtract */
+	0,			/* nb_multiply */
+	0,			/* nb_divide */
+	0,			/* nb_remainder */
+	0,			/* nb_divmod */
+	0,			/* nb_power */
+	0,			/* nb_negative */
+	0,			/* nb_positive */
+	0,			/* nb_absolute */
+	0,			/* nb_nonzero */
+	0,			/* nb_invert */
+	0,			/* nb_lshift */
+	0,			/* nb_rshift */
+	bool_and,		/* nb_and */
+	bool_xor,		/* nb_xor */
+	bool_or,		/* nb_or */
+	0,			/* nb_coerce */
+	0,			/* nb_int */
+	0,			/* nb_long */
+	0,			/* nb_float */
+	0,			/* nb_oct */
+	0,		 	/* nb_hex */
+	0,			/* nb_inplace_add */
+	0,			/* nb_inplace_subtract */
+	0,			/* nb_inplace_multiply */
+	0,			/* nb_inplace_divide */
+	0,			/* nb_inplace_remainder */
+	0,			/* nb_inplace_power */
+	0,			/* nb_inplace_lshift */
+	0,			/* nb_inplace_rshift */
+	0,			/* nb_inplace_and */
+	0,			/* nb_inplace_xor */
+	0,			/* nb_inplace_or */
+	0,			/* nb_floor_divide */
+	0,			/* nb_true_divide */
+	0,			/* nb_inplace_floor_divide */
+	0,			/* nb_inplace_true_divide */
+};
+
+/* The type object for bool.  Note that this cannot be subclassed! */
+
+PyTypeObject PyBool_Type = {
+	PyVarObject_HEAD_INIT(&PyType_Type, 0)
+	"bool",
+	sizeof(PyIntObject),
+	0,
+	0,					/* tp_dealloc */
+	(printfunc)bool_print,			/* tp_print */
+	0,					/* tp_getattr */
+	0,					/* tp_setattr */
+	0,					/* tp_compare */
+	(reprfunc)bool_repr,			/* tp_repr */
+	&bool_as_number,			/* tp_as_number */
+	0,					/* tp_as_sequence */
+	0,					/* tp_as_mapping */
+	0,					/* tp_hash */
+        0,					/* tp_call */
+        (reprfunc)bool_repr,			/* tp_str */
+	0,					/* tp_getattro */
+	0,					/* tp_setattro */
+	0,					/* tp_as_buffer */
+	Py_TPFLAGS_DEFAULT | Py_TPFLAGS_CHECKTYPES, /* tp_flags */
+	bool_doc,				/* tp_doc */
+	0,					/* tp_traverse */
+	0,					/* tp_clear */
+	0,					/* tp_richcompare */
+	0,					/* tp_weaklistoffset */
+	0,					/* tp_iter */
+	0,					/* tp_iternext */
+	0,					/* tp_methods */
+	0,					/* tp_members */
+	0,					/* tp_getset */
+	&PyInt_Type,				/* tp_base */
+	0,					/* tp_dict */
+	0,					/* tp_descr_get */
+	0,					/* tp_descr_set */
+	0,					/* tp_dictoffset */
+	0,					/* tp_init */
+	0,					/* tp_alloc */
+	bool_new,				/* tp_new */
+};
+
+/* The objects representing bool values False and True */
+
+/* Named Zero for link-level compatibility */
+PyIntObject _Py_ZeroStruct = {
+	PyObject_HEAD_INIT(&PyBool_Type)
+	0
+};
+
+PyIntObject _Py_TrueStruct = {
+	PyObject_HEAD_INIT(&PyBool_Type)
+	1
+};