digitalmars.D.bugs - [Issue 4770] New: structs don't correctly copy when alias this is used
- d-bugmail puremagic.com (47/47) Aug 30 2010 http://d.puremagic.com/issues/show_bug.cgi?id=4770
- d-bugmail puremagic.com (13/13) Aug 30 2010 http://d.puremagic.com/issues/show_bug.cgi?id=4770
http://d.puremagic.com/issues/show_bug.cgi?id=4770 Summary: structs don't correctly copy when alias this is used Product: D Version: D2 Platform: x86 OS/Version: Windows Status: NEW Severity: major Priority: P2 Component: DMD AssignedTo: nobody puremagic.com ReportedBy: kieron_brown hotmail.com PDT --- if alias this is used on a member value (whether simple, or another struct) copying an instantiated struct no longer results in all struct members being copied (only the aliased value is copied). The version is Version D 2.048 (version text copied from changelog) The problem is best illustrated by a minimal example: ----- self contained d sample starts ----- import std.stdio, std.math; void main() { auto p = Test(0.5, 0.5); assert(0.5 == p.a); // ok assert(0.5 == p.b); // ok Test q; //q = Test(0.5, 0.5); // // the above line can substitute // the one below and the same // problem occurs q = p; if (isNaN(q.b)) printf("problem replicated\n"); assert(0.5 == q.a); // ok assert(0.5 == q.b); // this fails } struct Test { double a; double b; alias a this; } ----- end of file ----- -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Aug 30 2010
http://d.puremagic.com/issues/show_bug.cgi?id=4770 David Simcha <dsimcha yahoo.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED CC| |dsimcha yahoo.com Resolution| |DUPLICATE Dup of Bug 2943. *** This issue has been marked as a duplicate of issue 2943 *** -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Aug 30 2010