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Date: Sun, 14 Jun 2015 16:21:56 +0200
From: Christian Neukirchen <>
To: Rich Felker <>
Subject: Re: Tests needed for byte-based C locale

Rich Felker <> writes:

> Here are some basic tests I'd like to have for the byte-based C
> locale, preferably most of them before committing the code and all
> before a release containing it. Any help writing them (for the
> libc-test framework) would be much appreciated. Short of that, even
> just some quick sanity checks using existing programs (e.g. busybox
> utils with regex/fnmatch usage) would be helpful.
> Regex & fnmatch:
> - Literals with arbitrary high bytes match.
> - Brackets match byte values/ranges.

printf 'foo\x80bar\n' | busybox grep f.*b
printf 'foo\x80bar\n' | LANG=C LC_ALL=C busybox grep f.*b
printf 'foo\x80bar\n' | LANG=C LC_ALL=C busybox grep f.b
<nothing again, why?>

Breakpoint 1, regexec (preg=0x7ffff7ffe668, 
    string=0x7ffff7ffec00 "foo\200bar", nmatch=1, pmatch=0x7ffff7ffe6a8, 
    eflags=0) at src/regex/regexec.c:983
then returns 1.

Christian Neukirchen  <>

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