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Re: NSIternalInconsistencyException with NSMutableData


From: Sebastian Reitenbach
Subject: Re: NSIternalInconsistencyException with NSMutableData
Date: Sun, 05 Jan 2014 18:24:27 +0100
User-agent: SOGoMail 2.1.1b

On Sunday, January 5, 2014 18:02 CET, Fred Kiefer <address@hidden> wrote:

> On 04.01.2014 06:27, Germán Arias wrote:
> > I'm having a problem with NSMutableData at GNUMail. This app declares 
> > extensions for NSData at file NSData+Extension.m, inside these methods 
> > NSMutableData objects are used. Specifically the methos 
> > -replaceBytesInRange:withBytes:length:, which causes an 
> > NSIternalInconsistencyException with message: missing bytes in 
> > replaceByteInRange:withBytes:. I thought this was because the object 
> > NSMutableData was modified before call -replaceByteInRange:withBytes:. So, 
> > I changed this and to now the bytes are removed with -setLength:, which 
> > works for me. But after re-read the documentation, I see I misunderstand 
> > this, and that -replaceBytesInRange:withBytes:length: should work.
> > > The correspondign code is, the exceptions occurs at last line:
> > >        // The line is fixed, we append it.
> >       [lines appendData: aLine];
> >       >       // We add the necessary quote characters in the paragraph
> >       if (quote_depth)
> >         {
> >           NSData *d;
> >           >               d = [lines quoteWithLevel: quote_depth   
> > wrappingLimit: theQuoteLimit];
> >           [lines replaceBytesInRange: NSMakeRange(0, [lines length])
> >                  withBytes: [d bytes]  length: [d length]];
> >         }
> > >     // We append the paragraph (if any)
> >       if ([lines length])
> >         {
> >           [aMutableData appendData: lines];
> >         }
> >       [aMutableData appendCString: "\n"];
> >       >       // We empty the paragraph buffer
> >       [lines replaceBytesInRange: NSMakeRange(0, [lines length] withBytes: 
> > NULL  length: 0];
> > > > Any advice?
>
> Hi German,
>
> first off, technical questions like this one would be better of on the
> developer mailing list.
>
> Next if you look at the code in NSData.m you will see that this
> exception gets raised when the call [self mutableBytes] returns 0. Now
> this is one of the methods specific to each class in the class cluster.
> That means nobody is able to comment on the problem without knowing how
> "lines" gets instantiated. I tried to find the code for GNUmail on the
> internet before replying, but failed to. The official address seems to
> be dead.
>

GNUMail is currently to be found on gnustep-nonfsf project:
https://gna.org/svn/?group=gnustep-nonfsf

cheers,
Sebastian


> Sorry for being of no help here,
> Fred
>
>
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> Discuss-gnustep mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/discuss-gnustep








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