enum for beginners

[Johannes Totz]

On 15/11/2011 15:56, Steven Schveighoffer wrote:
> On Tue, 15 Nov 2011 10:55:44 -0500, Steven Schveighoffer
> <schveiguy at yahoo.com> wrote:
>
>> On Tue, 15 Nov 2011 10:47:22 -0500, Johannes Totz <johannes at jo-t.de>
>> wrote:
>>> Ah, when I compile on the command line with:
>>>
>>> dmd -g -debug main.d
>>>
>>> main.d(6): Error: enum main.X base type must be of integral type, not
>>> char[]
>>> main.d(8): Error: cannot implicitly convert expression ("a") of type
>>> char[1u] to int
>>> main.d(9): Error: cannot implicitly convert expression ("b") of type
>>> char[1u] to int
>>
>> dmd must map to a D1 version, where string literals were char[N], not
>> immutable(char)[]. In D1, you could not have enums that were strings.
>
> to check, type dmd without args on the command line, it will tell you
> the version.

There is a 1.071 version somewhere in the path...
C:\Users\...>dmd
DMD32 D Compiler v1.071

But if I do...
C:\Users\...>C:\D\dmd2\windows\bin\dmd.exe -g -debug main.d
main.d(8): Error: Integer constant expression expected instead of "a"
main.d(9): Error: Integer constant expression expected instead of "b"
main.d(8): Error: Integer constant expression expected instead of "a"
main.d(9): Error: Integer constant expression expected instead of "b"

However...
C:\Users\...>C:\D\dmd2\windows\bin\dmd.exe main.d
C:\Users\...>main.exe
a


Getting rid of 1.071...
C:\Users\...>dmd
DMD32 D Compiler v2.056

C:\Users\...>dmd -g -debug main.d
main.d(8): Error: Integer constant expression expected instead of "a"
main.d(9): Error: Integer constant expression expected instead of "b"
main.d(8): Error: Integer constant expression expected instead of "a"
main.d(9): Error: Integer constant expression expected instead of "b"