From 07b1c877b2d07d39405184cde7d60ccf048e6d1d Mon Sep 17 00:00:00 2001 From: Antoine Pitrou Date: Sun, 18 Dec 2011 01:25:27 +0100 Subject: Issue #13522: document error return values of some float and complex C API functions. --- Doc/c-api/complex.rst | 8 +++++++- Doc/c-api/float.rst | 2 ++ Misc/ACKS | 1 + 3 files changed, 10 insertions(+), 1 deletion(-) diff --git a/Doc/c-api/complex.rst b/Doc/c-api/complex.rst index 43dfe56..3cff88a 100644 --- a/Doc/c-api/complex.rst +++ b/Doc/c-api/complex.rst @@ -63,12 +63,18 @@ pointers. This is consistent throughout the API. 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 :attr:`exp.imag` is not null, or :attr:`exp.real` is negative, + this method returns zero and sets :c:data:`errno` to :c:data:`EDOM`. + Complex Numbers as Python Objects ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -123,4 +129,4 @@ Complex Numbers as Python Objects 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. + number object. Upon failure, this method returns ``-1.0`` as a real value. diff --git a/Doc/c-api/float.rst b/Doc/c-api/float.rst index 757efd3..27a75e3 100644 --- a/Doc/c-api/float.rst +++ b/Doc/c-api/float.rst @@ -47,6 +47,8 @@ Floating Point Objects Return a C :c:type:`double` representation of the contents of *pyfloat*. If *pyfloat* is not a Python floating point object but has a :meth:`__float__` method, this method will first be called to convert *pyfloat* into a float. + This method returns ``-1.0`` upon failure, so one should call + :c:func:`PyErr_Occurred` to check for errors. .. c:function:: double PyFloat_AS_DOUBLE(PyObject *pyfloat) diff --git a/Misc/ACKS b/Misc/ACKS index 673c546..10f1386 100644 --- a/Misc/ACKS +++ b/Misc/ACKS @@ -139,6 +139,7 @@ Tarn Weisner Burton Lee Busby Ralph Butler Jp Calderone +Arnaud Calmettes Daniel Calvelo Tony Campbell Brett Cannon -- cgit v0.12