This is the mail archive of the java-patches@gcc.gnu.org mailing list for the Java project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: BigInteger.modInverse() fix


Raif S. Naffah wrote:
Not necessarirly.  I don't think canonicaliztion of small
integers is required for correctness, just (space) effiency...
...and speed, for some numerical algorithms where modulo 2**32 is enough.
canonicalize "in place" (i.e. ignoring the looking in smallFixNums
still converts the 1-word integers to use just the 'ival' field
without the 'words' array.  The issue is whether the input
BigInteger, after "normalization-in-place" is replace by the
equivalent BigInteger in the smallFixNums array.  The later
wouldn't change the algorithms used, just the identity of the
objects used.
--
	--Per Bothner
per@bothner.com   http://www.bothner.com/per/


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]