Sadly, in our case it is not possible to split it into multiple files.
Perhaps we will come up with some other solution in this case (e.g.
remove the 'message'- altogether).

Issue:
http://code.google.com/p/protobuf/issues/detail?id=179


On 8 huhti, 03:51, Kenton Varda <ken...@google.com> wrote:
> Strange, this is the first I've heard of this problem affecting C++.
>
> Can you possibly split your .proto into multiple files?  It takes quite a
> monster of a file to produce a 64k descriptor, even when using lots of
> custom options.  It seems like such a file would be hard to maintain anyway,
> so splitting it up would be a good idea.
>
> Also, can you file an issue 
> report?http://code.google.com/p/protobuf/issues/list
>
>
>
> On Wed, Apr 7, 2010 at 6:22 AM, Iiro <iiro.hiet...@gmail.com> wrote:
> > The problem seems to occur with Visual C++ 2008 also. The test project
> > compiled succesfully before because I had accidentally left the
> > exampleenum.pb.cc and enumextension.pb.cc files out from the solution.
>
> > On 7 huhti, 00:48, Jason Hsueh <jas...@google.com> wrote:
> > > This sounds like a C++ version of the Java issue fixed with
> > > r189<http://code.google.com/p/protobuf/source/detail?r=189>:
> > > the encoded descriptor data in the generated file exceeded the Java
> > string
> > > literal limit. This large descriptor was previously built in C++ but was
> > > removed from the test suite in a later revision. Kenton, do you recall if
> > > you ever ran the test with VC++2005? Just wondering if it only shows up
> > in
> > > certain environments/settings.
>
> > > On Tue, Apr 6, 2010 at 12:13 AM, Iiro <iiro.hiet...@gmail.com> wrote:
> > > > Hi!
>
> > > > I am having a problem when compiling my libraries which use protobuf
> > > > generated sources when I'm using the Visual C++ 2005 Professional
> > > > edition. I am using the version 2.3.0 of Protocol Buffers.
>
> > > > I have described a custom string EnumValueOptions extension as
> > > > follows:
>
> > > > extend google.protobuf.EnumValueOptions {
> > > >  optional string message = 50000;
> > > > }
>
> > > > Then, I use this string option in multiple enumeration values in
> > > > single enumeration proto, somewhat like this:
>
> > > > enum ExampleEnum
> > > > {
> > > >  ENUMERATION_OPTION = 1          [(message) = "Enumeration option
> > > > 1"];
> > > >  ENUMERATION_OPTION = 2          [(message) = "Enumeration option
> > > > 2"];
> > > >  ENUMERATION_OPTION = 3          [(message) = "Enumeration option
> > > > 3"];
> > > >  ENUMERATION_OPTION = 4          [(message) = "Enumeration option
> > > > 4"];
> > > > }
>
> > > > There are a lot more of these in the real implementation (maybe
> > > > hundreds and the messages are longer).
>
> > > > When I compile this with Visual Studio 2005 Pro I get:
>
> > > > "fatal error C1091: compiler limit: string exceeds 65535 bytes in
> > > > length"
>
> > > > This comes from the protoc generated file (i.e. exampleenum.pb.cc)
>
> > > > I have tried to compile this test project also in Linux environment
> > > > and with Visual C++ 2008 Express edition and the problem does not
> > > > reproduce.
>
> > > > I guess that the question is should the Protocol Buffers work when
> > > > using Visual Studio 2005? I can send you example project files if
> > > > necessary.
>
> > > > Thanks for reply in advance!
>
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