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SF bug #460020: bug or feature: unicode() and subclasses.

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Given an immutable type M, and an instance I of a subclass of M, the
constructor call M(I) was just returning I as-is; but it should return a
new instance of M.  This fixes it for M in {int, long}.  Strings, floats
and tuples remain to be done.
Added new macros PyInt_CheckExact and PyLong_CheckExact, to more easily
distinguish between "is" and "is a" (i.e., only an int passes
PyInt_CheckExact, while any sublass of int passes PyInt_Check).
Added private API function _PyLong_Copy.
This commit is contained in:
Tim Peters 2001-09-10 20:52:51 +00:00
parent 8b4e43e768
commit 64b5ce3a69
6 changed files with 55 additions and 3 deletions
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Include/longobject.h
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@ -12,6 +12,7 @@ typedef struct _longobject PyLongObject; /* Revealed in longintrepr.h */
extern DL_IMPORT(PyTypeObject) PyLong_Type;
#define PyLong_Check(op) PyObject_TypeCheck(op, &PyLong_Type)
#define PyLong_CheckExact(op) ((op)->ob_type == &PyLong_Type)
extern DL_IMPORT(PyObject *) PyLong_FromLong(long);
extern DL_IMPORT(PyObject *) PyLong_FromUnsignedLong(unsigned long);