digitalmars.D.bugs - [Issue 2245] New: Possible bug with mixin template functions and variadic params
- d-bugmail puremagic.com (62/62) Jul 24 2008 http://d.puremagic.com/issues/show_bug.cgi?id=2245
- d-bugmail puremagic.com (40/40) Aug 25 2008 http://d.puremagic.com/issues/show_bug.cgi?id=2245
- d-bugmail puremagic.com (11/11) Jul 14 2011 http://d.puremagic.com/issues/show_bug.cgi?id=2245
- d-bugmail puremagic.com (10/10) Jul 22 2011 http://d.puremagic.com/issues/show_bug.cgi?id=2245
- d-bugmail puremagic.com (9/9) Jul 22 2011 http://d.puremagic.com/issues/show_bug.cgi?id=2245
http://d.puremagic.com/issues/show_bug.cgi?id=2245 Summary: Possible bug with mixin template functions and variadic params Product: D Version: 2.017 Platform: PC OS/Version: Linux Status: NEW Keywords: rejects-valid Severity: normal Priority: P2 Component: DMD AssignedTo: bugzilla digitalmars.com ReportedBy: derek hipgraphics.com I posted the following the the language forum thinking perhaps I was doing something wrong, but it seems that this may be a bug in the 2.014 compiler. I also just downloaded the 2.017 compiler, and it gives the same bad result. Here is what I posted: I am trying to create a set of methods that take a variable number of arguments (at compile time). I would have liked to have used template functions to do that, but I need the functions to be virtual, and template functions cannot be virtual. So I thought I would try to use a mixin of a variadic template function. But I am getting a weird compiler error with my simple test program. Here is the test program: 1 import std.stdio; 2 3 template TCALL(ARGS...) 4 { 5 void makecall(ARGS args) 6 { 7 writefln("tcall...", args); 8 } 9 } 10 11 mixin TCALL!(); 12 mixin TCALL!(int); 13 mixin TCALL!(int,int); 14 15 16 class Method 17 { 18 mixin TCALL!(); 19 mixin TCALL!(int); 20 mixin TCALL!(int,int); 21 } 22 23 void main() 24 { 25 auto m = new Method; 26 27 m.makecall(0,1); 28 makecall(0,1); 29 } And when I compile with "Digital Mars D Compiler v2.014" I get this error: test6.d(27): Error: m.makecall is not a declaration test6.d(27): Error: function expected before (), not 1 of type int Can anyone explain what is going on here? It seems like it should work. Note that if you comment out line 27 and compile it compiles fine and runs producing the expected output: tcall...01 -Thanks, Derek --
Jul 24 2008
http://d.puremagic.com/issues/show_bug.cgi?id=2245 brunodomedeiros+bugz gmail.com changed: What |Removed |Added ---------------------------------------------------------------------------- Summary|Possible bug with mixin |Bug with overloaded, mixin |template functions and |template functions in |variadic params |classes This is not related to template variadic params. If you substitute: 3 template TCALL(ARGS...) 4 { 5 void makecall(ARGS args) 6 { 7 writefln("tcall...", args); 8 } 9 } with the 3 expansions: template TCALL() { void makecall() { writefln("tcall..."); } } template TCALL(T1) { void makecall(T1 a1) { writefln("tcall...", a1); } } template TCALL(T1, T2) { void makecall(T1 a1, T2 a2) { writefln("tcall...", a1, a2); } } you still get the same error. It rather seems more like a overload+mixin issue. --
Aug 25 2008
http://d.puremagic.com/issues/show_bug.cgi?id=2245 Kenji Hara <k.hara.pg gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |patch CC| |k.hara.pg gmail.com https://github.com/D-Programming-Language/dmd/pull/250 -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Jul 14 2011
http://d.puremagic.com/issues/show_bug.cgi?id=2245 Walter Bright <bugzilla digitalmars.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |bugzilla digitalmars.com 15:12:47 PDT --- https://github.com/D-Programming-Language/dmd/commit/21b96d9ce33b78330f989c624f086f9f0db1dcb1 -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Jul 22 2011
http://d.puremagic.com/issues/show_bug.cgi?id=2245 Walter Bright <bugzilla digitalmars.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Jul 22 2011