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  r82966 | stefan.krah | 2010-07-19 14:36:57 +0200 (Mon, 19 Jul 2010) | 13 lines

  Issue #9036: Throughout the code base, Py_CHARMASK is used on 8-bit wide
  signed/unsigned chars or on integers directly derived from those. In all
  cases, it could be replaced by a simple cast to (unsigned char). Reasons
  for the change:

    a) Make the comment more explicit.

    b) If char is unsigned, the cast is optimized away.

    c) If char is unsigned, gcc emits spurious "array subscript
       has type 'char'" warnings.
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This commit is contained in:
Stefan Krah 2010-07-19 13:00:48 +00:00
parent 18b00563db
commit 5bf0664175
1 changed files with 1 additions and 6 deletions
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7
Include/Python.h
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@ -126,13 +126,8 @@
/* _Py_Mangle is defined in compile.c */
PyAPI_FUNC(PyObject*) _Py_Mangle(PyObject *p, PyObject *name);
/* Convert a possibly signed character to a nonnegative int */
/* XXX This assumes characters are 8 bits wide */
#ifdef __CHAR_UNSIGNED__
#define Py_CHARMASK(c) (c)
#else
/* Argument must be a char or an int in [-128, 127] or [0, 255]. */
#define Py_CHARMASK(c) ((unsigned char)((c) & 0xff))
#endif
#include "pyfpe.h"