Name	Size	Mode	Actions
abstract.rst.txt	702	0644	editdlrm
allocation.rst.txt	4796	0644	editdlrm
arg.rst.txt	26004	0644	editdlrm
bool.rst.txt	1304	0644	editdlrm
buffer.rst.txt	22965	0644	editdlrm
bytearray.rst.txt	2181	0644	editdlrm
capsule.rst.txt	5741	0644	editdlrm
cell.rst.txt	1940	0644	editdlrm
class.rst.txt	1866	0644	editdlrm
cobject.rst.txt	1870	0644	editdlrm
code.rst.txt	1635	0644	editdlrm
codec.rst.txt	4643	0644	editdlrm
complex.rst.txt	4079	0644	editdlrm
concrete.rst.txt	1963	0644	editdlrm
conversion.rst.txt	7092	0644	editdlrm
datetime.rst.txt	6413	0644	editdlrm
descriptor.rst.txt	1296	0644	editdlrm
dict.rst.txt	7757	0644	editdlrm
exceptions.rst.txt	35304	0644	editdlrm
file.rst.txt	6198	0644	editdlrm
float.rst.txt	3371	0644	editdlrm
function.rst.txt	2421	0644	editdlrm
gcsupport.rst.txt	6587	0644	editdlrm
gen.rst.txt	920	0644	editdlrm
import.rst.txt	11221	0644	editdlrm
index.rst.txt	578	0644	editdlrm
init.rst.txt	49160	0644	editdlrm
int.rst.txt	4578	0644	editdlrm
intro.rst.txt	28473	0644	editdlrm
iter.rst.txt	1390	0644	editdlrm
iterator.rst.txt	1796	0644	editdlrm
list.rst.txt	6362	0644	editdlrm
long.rst.txt	7987	0644	editdlrm
mapping.rst.txt	2874	0644	editdlrm
marshal.rst.txt	3985	0644	editdlrm
memory.rst.txt	11556	0644	editdlrm
method.rst.txt	2099	0644	editdlrm
module.rst.txt	3867	0644	editdlrm
none.rst.txt	697	0644	editdlrm
number.rst.txt	11939	0644	editdlrm
objbuffer.rst.txt	2516	0644	editdlrm
object.rst.txt	17491	0644	editdlrm
objimpl.rst.txt	305	0644	editdlrm
refcounting.rst.txt	2934	0644	editdlrm
reflection.rst.txt	1567	0644	editdlrm
sequence.rst.txt	8716	0644	editdlrm
set.rst.txt	6588	0644	editdlrm
slice.rst.txt	2979	0644	editdlrm
string.rst.txt	15422	0644	editdlrm
structures.rst.txt	14966	0644	editdlrm
sys.rst.txt	5714	0644	editdlrm
tuple.rst.txt	5491	0644	editdlrm
type.rst.txt	2761	0644	editdlrm
typeobj.rst.txt	66936	0644	editdlrm
unicode.rst.txt	45126	0644	editdlrm
utilities.rst.txt	415	0644	editdlrm
veryhigh.rst.txt	13363	0644	editdlrm
weakref.rst.txt	2820	0644	editdlrm

.. highlightlang:: c .. _complexobjects: Complex Number Objects ---------------------- .. index:: object: complex number Python's complex number objects are implemented as two distinct types when viewed from the C API: one is the Python object exposed to Python programs, and the other is a C structure which represents the actual complex number value. The API provides functions for working with both. Complex Numbers as C Structures ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Note that the functions which accept these structures as parameters and return them as results do so *by value* rather than dereferencing them through pointers. This is consistent throughout the API. .. c:type:: Py_complex The C structure which corresponds to the value portion of a Python complex number object. Most of the functions for dealing with complex number objects use structures of this type as input or output values, as appropriate. It is defined as:: typedef struct { double real; double imag; } Py_complex; .. c:function:: Py_complex _Py_c_sum(Py_complex left, Py_complex right) Return the sum of two complex numbers, using the C :c:type:`Py_complex` representation. .. c:function:: Py_complex _Py_c_diff(Py_complex left, Py_complex right) Return the difference between two complex numbers, using the C :c:type:`Py_complex` representation. .. c:function:: Py_complex _Py_c_neg(Py_complex complex) Return the negation of the complex number *complex*, using the C :c:type:`Py_complex` representation. .. c:function:: Py_complex _Py_c_prod(Py_complex left, Py_complex right) Return the product of two complex numbers, using the C :c:type:`Py_complex` representation. .. c:function:: Py_complex _Py_c_quot(Py_complex dividend, Py_complex divisor) Return the quotient of two complex numbers, using the C :c:type:`Py_complex` representation. If *divisor* is null, this method returns zero and sets :c:data:`errno` to :c:data:`EDOM`. .. c:function:: Py_complex _Py_c_pow(Py_complex num, Py_complex exp) Return the exponentiation of *num* by *exp*, using the C :c:type:`Py_complex` representation. If *num* is null and *exp* is not a positive real number, this method returns zero and sets :c:data:`errno` to :c:data:`EDOM`. Complex Numbers as Python Objects ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ .. c:type:: PyComplexObject This subtype of :c:type:`PyObject` represents a Python complex number object. .. c:var:: PyTypeObject PyComplex_Type This instance of :c:type:`PyTypeObject` represents the Python complex number type. It is the same object as ``complex`` and ``types.ComplexType``. .. c:function:: int PyComplex_Check(PyObject *p) Return true if its argument is a :c:type:`PyComplexObject` or a subtype of :c:type:`PyComplexObject`. .. versionchanged:: 2.2 Allowed subtypes to be accepted. .. c:function:: int PyComplex_CheckExact(PyObject *p) Return true if its argument is a :c:type:`PyComplexObject`, but not a subtype of :c:type:`PyComplexObject`. .. versionadded:: 2.2 .. c:function:: PyObject* PyComplex_FromCComplex(Py_complex v) Create a new Python complex number object from a C :c:type:`Py_complex` value. .. c:function:: PyObject* PyComplex_FromDoubles(double real, double imag) Return a new :c:type:`PyComplexObject` object from *real* and *imag*. .. c:function:: double PyComplex_RealAsDouble(PyObject *op) Return the real part of *op* as a C :c:type:`double`. .. c:function:: double PyComplex_ImagAsDouble(PyObject *op) Return the imaginary part of *op* as a C :c:type:`double`. .. c:function:: Py_complex PyComplex_AsCComplex(PyObject *op) Return the :c:type:`Py_complex` value of the complex number *op*. Upon failure, this method returns ``-1.0`` as a real value. .. versionchanged:: 2.6 If *op* is not a Python complex number object but has a :meth:`__complex__` method, this method will first be called to convert *op* to a Python complex number object.