[issue17016] _sre: avoid relying on pointer overflow

[Roundup Robot]

Roundup Robot added the comment:

New changeset 27162465316f by Serhiy Storchaka in branch '2.7':
Issue #17016: Get rid of possible pointer wraparounds and integer overflows
http://hg.python.org/cpython/rev/27162465316f

New changeset 2673d207c524 by Serhiy Storchaka in branch '3.3':
Issue #17016: Get rid of possible pointer wraparounds and integer overflows
http://hg.python.org/cpython/rev/2673d207c524

New changeset f280786d0e64 by Serhiy Storchaka in branch 'default':
Issue #17016: Get rid of possible pointer wraparounds and integer overflows
http://hg.python.org/cpython/rev/f280786d0e64

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nosy: +python-dev

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