[Bug regex/20381] New: different results between whether fastmap is available or not

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=20381

            Bug ID: 20381
           Summary: different results between whether fastmap is available
                    or not
           Product: glibc
           Version: unspecified
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: regex
          Assignee: unassigned at sourceware dot org
          Reporter: noritnk at kcn dot ne.jp
                CC: drepper.fsp at gmail dot com
  Target Milestone: ---
             Flags: security-

--
LC_ALL=el_GR.iso88597

<U03A3>  /xd3  GREEK CAPITAL LETTER SIGMA
<U03C2>  /xf2  GREEK SMALL LETTER FINAL SIGMA
<U03C3>  /xf3  GREEK SMALL LETTER SIGMA

toupper
<U03C3>,<U03A3>
<U03C2>,<U03A3>

tolower
<U03A3>,<U03C3>

totitle
<U03C3>,<U03A3>
<U03C2>,<U03A3>
--

If fastmap is not available, any character in three characters match the
character and other characters without exception.

However if available, GREEK SMALL LETTER FINAL SIGMA does not match
neither the character nor other characters.

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