Locale and strerror in libgcj's native code...

Bryce McKinlay mckinlay@redhat.com
Wed Aug 11 20:20:00 GMT 2004

David Daney wrote:

>In several places within the native code in libgcj, we have constructs
>like this:
>throw new IOException (JvNewStringUTF (strerror (errno)));
>throw new IOException (JvNewStringLatin1 (strerror (errno)));
>According to my reading of the man pages, strerror returns a string
>according to the LC_MESSAGES encoding.
>This means that the actual encoding is not known until runtime.  So at
>compile time it is impossible to know which JvNewString* function to
>use.  It seems to me that using a mix (as we currently do) is clearly
>wrong and only works in with ASCII encoding.
>Perhaps we should have a JvNewStringLocale(const char *) that assumes
>the encoding is as specified by LC_MESSAGES.
>For the time being, I am using JvNewStringUTF as that seems to be what
>my Fedora Core 1 system defaults to.
Most POSIX OS's seem to be standardizing on UTF8, so I think its fine to 
assume UTF8 in these places. We can always change this later if it turns 
out to be a problem.



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