July 13, 2010 [Issue 4452] New: Incorrect result of BigInt ^^ long | ||||
---|---|---|---|---|
| ||||
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 --- Comment #0 from yebblies <yebblies@gmail.com> 2010-07-13 04:50:21 PDT --- 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: ------- |
July 14, 2010 [Issue 4452] Incorrect result of BigInt ^^ long | ||||
---|---|---|---|---|
| ||||
Posted in reply to yebblies | 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 --- Comment #1 from Don <clugdbug@yahoo.com.au> 2010-07-14 00:07:45 PDT --- Fixed in Phobos svn 1757. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- |
Copyright © 1999-2021 by the D Language Foundation