Bug 4680 – Duplicated function/overload error message

This is a wrong D2 program: int x = 1; int x = 1; void main() {} dmd 2.048 prints a good enough error message: test.d(2): Error: variable test.x conflicts with variable test.x at test.d(1) This is another wrong D2 program: void foo() {} void foo() {} void main() {} But here dmd 2.048 on Windows shows a link error: OPTLINK (R) for Win32 Release 8.00.2 Copyright (C) Digital Mars 1989-2009 All rights reserved. http://www.digitalmars.com/ctg/optlink.html test.obj(test) Offset 00151H Record Type 00C3 Error 1: Previous Definition Different : _D4test3fooFZv In my opinion here it's better for dmd to spot the function foo() duplication and give a cleaner error message, something like: test.d(2): Error: function test.foo() has the same signature as the function test.foo() at test.d(1) This bug may happen if a function is duplicated, or if the overloading is done in a wrong way.

This shows a related problem: http://www.digitalmars.com/webnews/newsgroups.php?art_group=digitalmars.D.learn&article_id=22302 > And a note: had forgotten to add an empty main(), just for compiling: > the linker produced a rather big amount of error text without any hint > to the actual issue. Maybe dmd could cope with that before calling gcc? I agree, it's better if DMD gives a nice and clean error message when the main() is missing.

*** This issue has been marked as a duplicate of issue 1003 ***