svn+ssh://pythondev@svn.python.org/python/branches/py3k
........
r82194 | stefan.krah | 2010-06-24 12:25:08 +0200 (Thu, 24 Jun 2010) | 3 lines
Add specification for the Py_IS* macros in pyctype.h.
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extern const unsigned int _Py_ctype_table[256];
+/* Unlike their C counterparts, the following macros are not meant to
+ * handle an int with any of the values [EOF, 0-UCHAR_MAX]. The argument
+ * must be a signed/unsigned char. */
#define Py_ISLOWER(c) (_Py_ctype_table[Py_CHARMASK(c)] & PY_CTF_LOWER)
#define Py_ISUPPER(c) (_Py_ctype_table[Py_CHARMASK(c)] & PY_CTF_UPPER)
#define Py_ISALPHA(c) (_Py_ctype_table[Py_CHARMASK(c)] & PY_CTF_ALPHA)