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-rw-r--r--Include/pyport.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/Include/pyport.h b/Include/pyport.h
index 9b5c54d..e0d9b7d 100644
--- a/Include/pyport.h
+++ b/Include/pyport.h
@@ -99,6 +99,8 @@ typedef Py_intptr_t Py_ssize_t;
/* Largest positive value of type Py_ssize_t. */
#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
* format to convert an argument with the width of a size_t or Py_ssize_t.