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bug#22830: Spurious bidi reordering

From: Andreas Schwab
Subject: bug#22830: Spurious bidi reordering
Date: Sat, 27 Feb 2016 16:28:56 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.91 (gnu/linux)

When inserting the three characters "\1%&" into a buffer the last two
characters are reordered as if they were L2R characters.  This only
happens on powerpc and aarch64, which is a strong indication that the
bidi code fails to take the signedness of char into account.  In fact,
compiling bidi.c with -funsigned-char is enough to break it.


Andreas Schwab, address@hidden
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