J.Wolff v. Gudenberg wrote:

Dear Roberto Bagnara,

For what application do you need complex interval arithmetic ? Do you need the extended mode ?

Dear Wolff,

our field of application is data-flow analysis and abstract interpretation. More specifically we now need complex interval arithmetic in a project that deals with the automatic approximate solution of difference equations. We need the extended mode; we would also need intervals with open boundaries, but we can live without that for the moment.

In the next future we are not planning to implement complex arithmetic for filib++. but we would appreciate, if your group can add this facility for the library.

OK, I have just sent a message to the authors of CoStLy to see if anyone is doing the same thing. We will start working on that immediately if the answer is negative.

We are investigating a way to use the same cvs archive behind our firewall.

We have already put filib++ on our CVS server so that we can easily track our and your changes.

...

From the math viewpoint of complex arithmetic, we think that it is not

trivial to define the extended mode. We currently see no ressources on our site for research in this area. But we are positively interested in the subject.

OK.

I have just fetched the new version of filib++ (the one of February 6) and I am having some problems with it. Firstly, the LIBDIR directory must be created by hand. In fact, if one tries to do `make libs' things end up with

ar rv /home/roberto/filib++/interval/macro/lib/fi_lib.a Interval.o acos.o acosh.o acot.o acoth.o asin.o asinh.o atan.o atanh.o cos.o cosh.o cot.o coth.o exp.o exp10.o exp2.o expm1.o log.o log10.o log1p.o log2.o pow.o q_acos.o q_acot.o q_acsh.o q_acth.o q_asin.o q_asnh.o q_atan.o q_atn1.o q_atnh.o q_cos.o q_cos1.o q_cosh.o q_cot.o q_coth.o q_cth1.o q_ep1.o q_epm1.o q_errm.o q_ex10.o q_exp.o q_exp2.o q_expm.o q_glbl.o q_lg10.o q_log.o q_log1.o q_log2.o q_rtrg.o q_sin.o q_sin1.o q_sinh.o q_tan.o q_tanh.o sin.o sinh.o sqr.o sqrt.o tan.o tanh.o ar: /home/roberto/filib++/interval/macro/lib/fi_lib.a: No such file or directorymake[2]: *** [/home/roberto/filib++/interval/macro/lib/fi_lib.a] Error 1 make[2]: Leaving directory `/home/roberto/filib++/interval/macro/src' make[1]: *** [lib] Error 2 make[1]: Leaving directory `/home/roberto/filib++/interval/macro' Supply variable GMAKE please! Making primitive.so from primitive.cpp in ieee: done. Building shared prim support library libprim.so.0: done. Setting symbolic link from lib/libprim.so.0 to lib/libprim.so: done.

So one has to create the directory .../interval/macro/lib by hand to complete the compilation of the library. May I also suggest to invoke `ar' with the options `cruv' instead of just `rv'? Note also the confusing error message "Supply variable GMAKE please!".

Another problem is that the distribution seems somewhat mutilated: in fact, the `test' directory seems missing and this is responsible for `make check' to fail and for useful things like `make clean' to print not very reassuring error messages. That is all for the moment. Please let me know when you update the distribution (BTW: it would be very useful to identify archives for different versions like filib++-2.0.1.tar.gz, filib++-2.0.2.tar.gz and so forth.) All the best

Roberto