2011/7/31 Honza <befelemepesev...@gmail.com>: > 2011/7/28 Bernd <prof7...@googlemail.com>: >> ¹ I depend on OpenSSL already anyways, so I thought why not make use >> of its bignum too when I need it. > > I hope you're aware of the FPC GMP bindings: > > http://wiki.freepascal.org/gmp
It seems the author fought with the same kind of problems and now there exist two ways of using these bindings, a thin one and a fat one with reference counting. I have considered this too. But at the moment for my project the pragmatism has won: I need them only for very simple operations in only a few parts of the application and in tight loops where speed matters more than elegance or being able to write A:=B instead of A.Assign(B). This means I am now representing them as Objects (not classes) and only a handful of inlined methods calling the external API and doing nothing else, no reference counting, no additional overhead, its just not worth all the effort for these 10 simple function calls (I'm not even using the complete API, only the bare minimum). Unfortunately Using the GMP library for *this* project is not an option, it took me already a week to convince myself (and stop evaluating alternatives) that there is no way around depending on OpenSSL anyways (because I need ECDSA) and since this will also give me some other things for free (SHA and RIPEMD which I also need) and also the bignum that I need for Base58 I don't have to add yet another dependency for any of these things (at the moment). *Maybe* I will later (when it all works) find the time and replace it with an existing native Pascal bignum implementation (I found one already) and then try to use this to implement ECDSA in Pascal myself and then get rid of OpenSSL altogether. But this has *very* low priority and can be done at any later time. Bernd _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
