symbian-qemu-0.9.1-12/python-2.6.1/Doc/c-api/float.rst
changeset 1 2fb8b9db1c86
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Doc/c-api/float.rst	Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,94 @@
+.. highlightlang:: c
+
+.. _floatobjects:
+
+Floating Point Objects
+----------------------
+
+.. index:: object: floating point
+
+
+.. ctype:: PyFloatObject
+
+   This subtype of :ctype:`PyObject` represents a Python floating point object.
+
+
+.. cvar:: PyTypeObject PyFloat_Type
+
+   .. index:: single: FloatType (in modules types)
+
+   This instance of :ctype:`PyTypeObject` represents the Python floating point
+   type.  This is the same object as ``float`` and ``types.FloatType``.
+
+
+.. cfunction:: int PyFloat_Check(PyObject *p)
+
+   Return true if its argument is a :ctype:`PyFloatObject` or a subtype of
+   :ctype:`PyFloatObject`.
+
+   .. versionchanged:: 2.2
+      Allowed subtypes to be accepted.
+
+
+.. cfunction:: int PyFloat_CheckExact(PyObject *p)
+
+   Return true if its argument is a :ctype:`PyFloatObject`, but not a subtype of
+   :ctype:`PyFloatObject`.
+
+   .. versionadded:: 2.2
+
+
+.. cfunction:: PyObject* PyFloat_FromString(PyObject *str, char **pend)
+
+   Create a :ctype:`PyFloatObject` object based on the string value in *str*, or
+   *NULL* on failure.  The *pend* argument is ignored.  It remains only for
+   backward compatibility.
+
+
+.. cfunction:: PyObject* PyFloat_FromDouble(double v)
+
+   Create a :ctype:`PyFloatObject` object from *v*, or *NULL* on failure.
+
+
+.. cfunction:: double PyFloat_AsDouble(PyObject *pyfloat)
+
+   Return a C :ctype:`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.
+
+
+.. cfunction:: double PyFloat_AS_DOUBLE(PyObject *pyfloat)
+
+   Return a C :ctype:`double` representation of the contents of *pyfloat*, but
+   without error checking.
+
+
+.. cfunction:: PyObject* PyFloat_GetInfo(void)
+
+   Return a structseq instance which contains information about the
+   precision, minimum and maximum values of a float. It's a thin wrapper
+   around the header file :file:`float.h`.
+
+   .. versionadded:: 2.6
+
+
+.. cfunction:: double PyFloat_GetMax(void)
+
+   Return the maximum representable finite float *DBL_MAX* as C :ctype:`double`.
+
+   .. versionadded:: 2.6
+
+
+.. cfunction:: double PyFloat_GetMin(void)
+
+   Return the minimum normalized positive float *DBL_MIN* as C :ctype:`double`.
+
+   .. versionadded:: 2.6
+
+
+.. cfunction:: int PyFloat_ClearFreeList(void)
+
+   Clear the float free list. Return the number of items that could not
+   be freed.
+
+   .. versionadded:: 2.6