digitalmars.D.bugs - [Issue 4452] New: Incorrect result of BigInt ^^ long
- d-bugmail puremagic.com (49/49) Jul 13 2010 http://d.puremagic.com/issues/show_bug.cgi?id=4452
- d-bugmail puremagic.com (12/12) Jul 14 2010 http://d.puremagic.com/issues/show_bug.cgi?id=4452
http://d.puremagic.com/issues/show_bug.cgi?id=4452 Summary: Incorrect result of BigInt ^^ long Product: D Version: D2 Platform: x86 OS/Version: Windows Status: NEW Severity: normal Priority: P2 Component: Phobos AssignedTo: nobody puremagic.com ReportedBy: yebblies gmail.com BigInt give incorrect results for a^^b for a select set of numbers: 12 ^^ 16 48 ^^ 8 48 ^^ 16 80 ^^ 8 112 ^^ 8 144 ^^ 8 176 ^^ 8 192 ^^ 16 208 ^^ 8 etc Test case: void main() { BigInt bpow(long a, long b) { auto r = BigInt(1); while(b--) r *= a; return r } foreach(a; 0..1000) { foreach(b; 0..1000) { auto r1 = bpow(a, b); auto r2 = BigInt(a) ^^ b; assert(r1 == r2); } } } Version of std.bigint packaged with dmd2.047 Have not checked on other hardware/os -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Jul 13 2010
http://d.puremagic.com/issues/show_bug.cgi?id=4452 Don <clugdbug yahoo.com.au> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED CC| |clugdbug yahoo.com.au Resolution| |FIXED Fixed in Phobos svn 1757. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Jul 14 2010