From: Stefan Behnel <stefan_ml@behnel.de>
Date: Sat, 2 Nov 2013 21:00:04 +0000 (+0100)
Subject: fix C pointer coercion problem when coercing bytes to signed char*
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=fe77570aceeb848f45b90638b2f89aa2ae4c26ea;p=platform%2Fupstream%2Fpython-cython.git

fix C pointer coercion problem when coercing bytes to signed char*
---

diff --git a/Cython/Compiler/PyrexTypes.py b/Cython/Compiler/PyrexTypes.py
index 0051d3d..9acb103 100644
--- a/Cython/Compiler/PyrexTypes.py
+++ b/Cython/Compiler/PyrexTypes.py
@@ -2085,7 +2085,10 @@ class CPointerBaseType(CType):
             if base_type.signed:
                 self.to_py_function = "__Pyx_PyObject_FromString"
                 if self.is_ptr:
-                    self.from_py_function = "__Pyx_PyObject_AsString"
+                    if base_type.signed == 2:
+                        self.from_py_function = "__Pyx_PyObject_AsSString"
+                    else:
+                        self.from_py_function = "__Pyx_PyObject_AsString"
             else:
                 self.to_py_function = "__Pyx_PyObject_FromUString"
                 if self.is_ptr:
diff --git a/Cython/Utility/TypeConversion.c b/Cython/Utility/TypeConversion.c
index 7046d60..2a41caa 100644
--- a/Cython/Utility/TypeConversion.c
+++ b/Cython/Utility/TypeConversion.c
@@ -19,6 +19,7 @@ static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(char*);
     #define __Pyx_PyStr_FromStringAndSize __Pyx_PyUnicode_FromStringAndSize
 #endif
 
+#define __Pyx_PyObject_AsSString(s)    ((signed char*) __Pyx_PyObject_AsString(s))
 #define __Pyx_PyObject_AsUString(s)    ((unsigned char*) __Pyx_PyObject_AsString(s))
 #define __Pyx_PyObject_FromUString(s)  __Pyx_PyObject_FromString((char*)s)
 #define __Pyx_PyBytes_FromUString(s)   __Pyx_PyBytes_FromString((char*)s)