64-bit DMD for windows?

[steven kladitis via Digitalmars-d]

On Tuesday, 13 May 2014 at 13:53:36 UTC, Manu via Digitalmars-d 
wrote:
> On 13 May 2014 23:24, steven kladitis via Digitalmars-d
> <digitalmars-d at puremagic.com> wrote:
>> On Tuesday, 13 May 2014 at 13:16:50 UTC, steven kladitis wrote:
>>>
>>> On Monday, 12 May 2014 at 23:21:28 UTC, Nick Sabalausky wrote:
>>>>
>>>> On 5/12/2014 5:01 PM, Andrej Mitrovic via Digitalmars-d 
>>>> wrote:
>>>>>
>>>>> On 5/12/14, Nick Sabalausky via Digitalmars-d
>>>>> <digitalmars-d at puremagic.com> wrote:
>>>>>>
>>>>>> You don't need a 64-bit version: Compiling 64-bit programs 
>>>>>> doesn't
>>>>>> require a 64-bit compiler. Just install VC++, use the DMD 
>>>>>> 2.065 Win
>>>>>> installer, and then toss in the -m64 flag when compiling. 
>>>>>> Works fine.
>>>>>> Doesn't matter if DMD itself is 32-bit.
>>>>>
>>>>>
>>>>> As Vladimir in IRC reminded me, there is one use-case: You 
>>>>> may need it
>>>>> for some intensive CTFE stuff (excessive memory allocations 
>>>>> and no
>>>>> freeing by the compiler). That is, if you need more than 
>>>>> 3/4 gigs.
>>>>>
>>>>
>>>> Right, there's certainly that. But that has nothing to do 
>>>> with whether
>>>> you're trying to build a 64-bit or 32-bit program, and (at 
>>>> least for
>>>> Windows) it isn't even an issue at all unless you actually 
>>>> are hitting that
>>>> limit (unlikely for a newcomer to D). It sounded like steven 
>>>> kladitis was
>>>> worried about just being able to create 64-bit programs. For 
>>>> that, it makes
>>>> no difference if the compiler itself is a 32- or 64-bit 
>>>> build.
>>>
>>>
>>> dmd -m64 ( windows ) says \bin\link not found :)
>>
>>
>> if the -m64 lets the compiled code use 64 bit registers and 
>> ints are now 64
>> bit then great! What is VC++, is it free?
>
> Pointers are 64bits.
> int is 32 bits, long is 64 bits.
> size_t is 64 bits.
>
> VC++ is Microsoft's compiler, DMD-x64 uses the de-facto standard
> Microsoft linker, since OPTLINK doesn't support 64bit.
> It is available for free.

I have installed it and am still unable to compile a 64 bit D 
program.

C:\d\dmd2\samples\d>dmd wc.d

C:\d\dmd2\samples\d>dmd -m64 wc.d
--- errorlevel -1073741515