RFR(XXS): 8161951: 8132379 introduced non ANSI C coding

David Holmes david.holmes at oracle.com
Thu Jul 21 05:49:51 UTC 2016


Hi Volker,

On 21/07/2016 4:49 AM, Volker Simonis wrote:
> Hi,
>
> can somebody please review the following trivial fix:
>
> http://cr.openjdk.java.net/~simonis/webrevs/2016/8161951/
> https://bugs.openjdk.java.net/browse/JDK-8161951
>
> Change '8132379: -J options can cause crash or "Warning: app args
> parsing error passing arguments as-is"' uses the following non ANSI C
> compatible code for declaring a block-level variable:
>
>     for (i = 0; i < argc; i++) {
>         j = appArgIdx[i];
>         jboolean arg_expand = (JLI_StrCmp(stdargs[j].arg, strv[i]) == 0)
>                                 ? stdargs[j].has_wildcard
>                                 : JNI_FALSE;
>
> But ANSI C only allows the declaration of block local variable at the
> beginning of a block.
>
> As the fix is trivial, it makes no sense to restrict ourselves to
> compilers which support this C99 feature (e.g. > VS2012).

Ok - Reviewed. But you really can't expect OpenJDK 9 to keep supporting 
C89 restrictions. We have people trying to get in C++11 constructs! :)

Cheers,
David

> Thank you and best regards,
> Volker
>


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