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Add PY_SSIZE_T_MIN, as suggested by Ralf W. Grosse-Kunstleve.

This commit is contained in:
Martin v. Löwis 2006-04-05 18:21:17 +00:00
parent 726dcf34a6
commit c48c8db110
2 changed files with 3 additions and 1 deletions
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2
Include/pyport.h
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@ -99,6 +99,8 @@ typedef Py_intptr_t Py_ssize_t;
/* Largest positive value of type Py_ssize_t. */ /* Largest positive value of type Py_ssize_t. */
#define PY_SSIZE_T_MAX ((Py_ssize_t)(((size_t)-1)>>1)) #define PY_SSIZE_T_MAX ((Py_ssize_t)(((size_t)-1)>>1))
/* Smallest positive value of type Py_ssize_t. */
#define PY_SSIZE_T_MIN (-PY_SSIZE_T_MAX-1)
/* PY_FORMAT_SIZE_T is a platform-specific modifier for use in a printf /* PY_FORMAT_SIZE_T is a platform-specific modifier for use in a printf
* format to convert an argument with the width of a size_t or Py_ssize_t. * format to convert an argument with the width of a size_t or Py_ssize_t.

2
Objects/longobject.c
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@ -281,7 +281,7 @@ _long_as_ssize_t(PyObject *vv) {
if (sign > 0) if (sign > 0)
return PY_SSIZE_T_MAX; return PY_SSIZE_T_MAX;
else else
return -PY_SSIZE_T_MAX-1; return PY_SSIZE_T_MIN;
} }
/* Get a Py_ssize_t from a long int object. /* Get a Py_ssize_t from a long int object.