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From "Stefan Teleman (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (STDCXX-1068) HP/UX's aCC alignment problems misalign everyone else
Date Thu, 27 Sep 2012 14:04:07 GMT

     [ https://issues.apache.org/jira/browse/STDCXX-1068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Stefan Teleman closed STDCXX-1068.
----------------------------------

    Resolution: Won't Fix

Will not be fixed upstream. Already fixed in Solaris.

                
> HP/UX's aCC alignment problems misalign everyone else
> -----------------------------------------------------
>
>                 Key: STDCXX-1068
>                 URL: https://issues.apache.org/jira/browse/STDCXX-1068
>             Project: C++ Standard Library
>          Issue Type: Bug
>          Components: 21. Strings
>    Affects Versions: 4.2.1, 4.2.x, 4.3.x
>         Environment: Any compiler besides HP/UX's aCC.
>            Reporter: Stefan Teleman
>             Fix For: 4.2.x, 4.3.x
>
>
> The following code in include/rw/_strref.h at line 245:
> {code:title=_strref.h|borderStyle=solid}
>     union {
>         size_type _C_size;    // Number of actual data values stored
>         _CharT    _C_dummy;   // force the alignment of the first char
>     } _C_size;                // named to work around an HP aCC 3.30 bug
> {code}
> causes misaligned reads/writes with SunPro 12.1, 12.2, 12.3 on Solaris (SPARC and Intel)
and Linux (Intel), GCC 4.5.2 and 4.7.1 (Linux Intel) and Intel 2003 (Linux Intel).
> The following patch fixes the problem:
> {code:title=_strref.h|borderStyle=solid}
>      union {
>          size_type _C_size;    // Number of actual data values stored
> +#if defined(__HP_aCC)
>          _CharT    _C_dummy;   // force the alignment of the first char
> -    } _C_size;                // named to work around an HP aCC 3.30 bug
> +#endif                        // named to work around an HP aCC 3.30 bug
> +    } _C_size;
>  };
> {code}

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