New submission from STINNER Victor:

On Windows 64-bit, Visual Studio generates a lot of warnings because Py_ssize_t 
values are downcasted to int.

Attached patch fixes all warnings and move the final downcast into 
compiler_addop_i(). This function uses an assertion to check that integer 
parameter fits into an C int type. I don't know if it's safe to "return 0" on 
overflow error.

The patch fixes also some indentation issues seen was I wrote the patch.

Nobody complained before, I don't know if the bugs can be seen in practice, so 
I prefer to not touch Python 2.7 nor 3.2.

----------
files: compile_ssize_t.patch
keywords: patch
messages: 202976
nosy: benjamin.peterson, haypo, serhiy.storchaka
priority: normal
severity: normal
status: open
title: Fix usage of Py_ssize_t type in Python/compile.c
versions: Python 3.4
Added file: http://bugs.python.org/file32644/compile_ssize_t.patch

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