Will cni be the sane native interface to c++ in openjdk U gcj?

Andrew Haley aph@redhat.com
Tue Dec 25 16:50:00 GMT 2007


Glenn Chambers writes:
 > On Tue, 2007年12月25日 at 12:03 +0000, Andrew Haley wrote:
 > > Glenn Chambers writes:
 > 
 > > > It's been a few years since I last played seriously in this area, but at
 > > > that point, there were enough impedance mis-matches between C++ objects
 > > > and Java objects that C-style glue layers turned out to be necessary.
 > > > 
 > > > In particular, code that threw or caught C++ exceptions couldn't also
 > > > throw and catch Java exceptions. This may have changed in recent
 > > > versions; I'll let the developers clarify that point.
 > > 
 > > This works fine, and has for a long while. I don't know how long ago
 > > you tried.
 > 
 > It was back in the early days of the 3.x series, as you can see from 
 > the FAQ entry I wrote on this subject. (Check out entry 6.1)
 > 
 > If I can get some spare cycles, I'll have to update that example; the
 > problems with exception personalities are gone in the version 3.3 gcj
 > on my (quite old) SUSE install.
Mmm, I think you are right. C++ code either throws Java exceptions or
C++ exceptions, but not both. I failed proprtly to read what you
wrote.
Andrew.
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