digitalmars.D.bugs - [Issue 4874] New: std.numeric.dotProduct doesn't work with bigints
- d-bugmail puremagic.com (41/41) Sep 15 2010 http://d.puremagic.com/issues/show_bug.cgi?id=4874
- d-bugmail puremagic.com (10/10) Sep 15 2010 http://d.puremagic.com/issues/show_bug.cgi?id=4874
- d-bugmail puremagic.com (10/10) Sep 15 2010 http://d.puremagic.com/issues/show_bug.cgi?id=4874
- d-bugmail puremagic.com (6/6) Mar 10 2013 http://d.puremagic.com/issues/show_bug.cgi?id=4874
http://d.puremagic.com/issues/show_bug.cgi?id=4874 Summary: std.numeric.dotProduct doesn't work with bigints Product: D Version: D2 Platform: x86 OS/Version: Windows Status: NEW Severity: normal Priority: P2 Component: Phobos AssignedTo: nobody puremagic.com ReportedBy: bearophile_hugs eml.cc Depends on: 4872 With dmd 2.049beta this code compiles (but first see bug 4872 too): import std.bigint; T dotProduct2(T)(/*in*/ T[] a1, /*in*/ T[] a2) { assert(a1.length == a2.length); T total = 0; foreach (i; 0 .. a1.length) total += a1[i] * a2[i]; return total; } void main() { BigInt[] a1 = [BigInt(1), BigInt(3), BigInt(-5)]; BigInt[] a2 = [BigInt(4), BigInt(-2), BigInt(-1)]; BigInt r = dotProduct2(a1, a2); } But the std.numeric.dotProduct() can't be used with bigints: import std.numeric, std.bigint; void main() { BigInt[] a1 = [BigInt(1), BigInt(3), BigInt(-5)]; BigInt[] a2 = [BigInt(4), BigInt(-2), BigInt(-1)]; assert(dotProduct(a1, a2) == BigInt(3)); } -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Sep 15 2010
http://d.puremagic.com/issues/show_bug.cgi?id=4874 Andrei Alexandrescu <andrei metalanguage.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED CC| |andrei metalanguage.com AssignedTo|nobody puremagic.com |andrei metalanguage.com -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Sep 15 2010
http://d.puremagic.com/issues/show_bug.cgi?id=4874 Don <clugdbug yahoo.com.au> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |clugdbug yahoo.com.au That's the same issue as 4301. BigInt isn't yet const-correct. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Sep 15 2010
http://d.puremagic.com/issues/show_bug.cgi?id=4874 PDT --- Assigning to Don. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Mar 10 2013