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Diffstat (limited to 'Doc/c-api/float.rst')
| -rw-r--r-- | Doc/c-api/float.rst | 2 |
1 files changed, 2 insertions, 0 deletions
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) |