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annotate Include/bufferobject.h @ 17405:afbb65b60fa2 2.0

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Inspired by Tim Peters' 1.14->1.15 checkin to asynchat Quoting orignal message: ''' Fix from the Madusa mailing list: http://groups.yahoo.com/group/medusa/message/333 It's clear that Medusa should not be checking for an empty buffer via "buf is ''". The patch merely changes "is" to "==". However, there's a mystery here all the same: Python attempts to store null strings uniquely, so it's unclear why "buf is ''" ever returned false when buf actually was empty. *Some* string operations produce non-unique null strings, e.g. '''
author Moshe Zadka <moshez@math.huji.ac.il>
date Wed, 11 Apr 2001 08:06:02 +0000
parents 6f6f965c5e2d
children c1eb668525e1
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2 /* Buffer object interface */
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4 /* Note: the object's structure is private */
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6 #ifndef Py_BUFFEROBJECT_H
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7 #define Py_BUFFEROBJECT_H
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8 #ifdef __cplusplus
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9 extern "C" {
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10 #endif
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13 extern DL_IMPORT(PyTypeObject) PyBuffer_Type;
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15 #define PyBuffer_Check(op) ((op)->ob_type == &PyBuffer_Type)
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17 #define Py_END_OF_BUFFER (-1)
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19 extern DL_IMPORT(PyObject *) PyBuffer_FromObject(PyObject *base,
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20 int offset, int size);
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21 extern DL_IMPORT(PyObject *) PyBuffer_FromReadWriteObject(PyObject *base,
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22 int offset,
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23 int size);
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25 extern DL_IMPORT(PyObject *) PyBuffer_FromMemory(void *ptr, int size);
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26 extern DL_IMPORT(PyObject *) PyBuffer_FromReadWriteMemory(void *ptr, int size);
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28 extern DL_IMPORT(PyObject *) PyBuffer_New(int size);
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30 #ifdef __cplusplus
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31 }
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32 #endif
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33 #endif /* !Py_BUFFEROBJECT_H */