digitalmars.D.bugs - [Issue 2735] New: Can't assign ref function to function pointer
- d-bugmail puremagic.com (24/24) Mar 15 2009 http://d.puremagic.com/issues/show_bug.cgi?id=2735
- d-bugmail puremagic.com (11/11) Mar 15 2009 http://d.puremagic.com/issues/show_bug.cgi?id=2735
- d-bugmail puremagic.com (5/10) Mar 15 2009 http://d.puremagic.com/issues/show_bug.cgi?id=2735
- d-bugmail puremagic.com (10/10) Mar 15 2009 http://d.puremagic.com/issues/show_bug.cgi?id=2735
- d-bugmail puremagic.com (11/11) Mar 15 2009 http://d.puremagic.com/issues/show_bug.cgi?id=2735
- d-bugmail puremagic.com (4/4) Mar 16 2009 http://d.puremagic.com/issues/show_bug.cgi?id=2735
- d-bugmail puremagic.com (9/9) Mar 16 2009 http://d.puremagic.com/issues/show_bug.cgi?id=2735
http://d.puremagic.com/issues/show_bug.cgi?id=2735 Summary: Can't assign ref function to function pointer Product: D Version: 2.025 Platform: PC OS/Version: Linux Status: NEW Severity: normal Priority: P2 Component: DMD AssignedTo: bugzilla digitalmars.com ReportedBy: jlquinn optonline.net ref int c() { static int a=2; return a; } int function() d = &c; fails to compile: jlquinn naga:~/d$ ~/dmd/linux/bin/dmd -v -c decl1.d parse decl1 semantic decl1 import object (/home/jlquinn/dmd/linux/bin/../../src/druntime/import/object.di) semantic2 decl1 decl1.d(2): Error: cannot implicitly convert expression (& c) of type int function() ref to int function() --
Mar 15 2009
http://d.puremagic.com/issues/show_bug.cgi?id=2735 I suppose it should be mentioned that it's not possible to declare a ref function pointer, or else this would be a no-brainer: ref int c() { static int a=2; return a; } ref int function() d = &c; // line 8 foo.d(8): variable foo.d only parameters or foreach declarations can be ref Type inference, however, is able to figure it out: ref int c() { static int a=2; return a; } auto d = &c; // whee --
Mar 15 2009
http://d.puremagic.com/issues/show_bug.cgi?id=2735I suppose it should be mentioned that it's not possible to declare a ref function pointer, or else this would be a no-brainer: ref int c() { static int a=2; return a; } ref int function() d = &c; // line 8Oops, yes, I meant to write that :-) --
Mar 15 2009
http://d.puremagic.com/issues/show_bug.cgi?id=2735 bugzilla digitalmars.com changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |INVALID The error message is correct, as a function that returns a reference is not the same type as a function that does not return a reference. --
Mar 15 2009
http://d.puremagic.com/issues/show_bug.cgi?id=2735 jarrett.billingsley gmail.com changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |REOPENED Resolution|INVALID | Then I suppose you didn't see my or Jerry's followup comments? It's not possible to declare a ref function pointer. It's possible to infer it, but not declare one. --
Mar 15 2009
http://d.puremagic.com/issues/show_bug.cgi?id=2735 alias typeof(&c) refintf_t; --
Mar 16 2009
http://d.puremagic.com/issues/show_bug.cgi?id=2735 bugzilla digitalmars.com changed: What |Removed |Added ---------------------------------------------------------------------------- Status|REOPENED |RESOLVED Resolution| |INVALID Please open different issues as different bug reports. --
Mar 16 2009