As:

https://github.com/dlang/dmd/pull/8946

removes the header files for the old C++ code!

On Sunday, 11 November 2018 at 23:40:16 UTC, Walter Bright wrote:
> As:
>
> https://github.com/dlang/dmd/pull/8946
>
> removes the header files for the old C++ code!

Congrats to everyone!

On Sunday, 11 November 2018 at 23:40:16 UTC, Walter Bright wrote:
> As:
>
> https://github.com/dlang/dmd/pull/8946
>
> removes the header files for the old C++ code!

This is a significant milestone.  Congratulations, Walter!

There are still a few .c files in https://github.com/dlang/dmd/tree/master/src/dmd/backend, so what's the significance of those?

Will there ever be a day when we no longer need a C/C++ compiler to build DMD?  Has that day arrived?

Mike

On Sunday, 11 November 2018 at 23:40:16 UTC, Walter Bright wrote:
> As:
>
> https://github.com/dlang/dmd/pull/8946
>
> removes the header files for the old C++ code!

by this, does it mean that D is entirely self hosted ?, ie given some slightly out of date version of dmd is that all thats needed to build dmd in its entirety ?

If so congrats on version one ! :p

On 11/11/2018 3:58 PM, Mike Franklin wrote:
> This is a significant milestone.  Congratulations, Walter!

Many people helped out with this, too.

> There are still a few .c files in https://github.com/dlang/dmd/tree/master/src/dmd/backend, so what's the significance of those?

tk.c
fp.c
os.c
strtold.c
tk/mem.c

These could be converted too, but are independent from everything else and hardly seem worth the bother. Sebastian has a PR for os.cd.


> Will there ever be a day when we no longer need a C/C++ compiler to build DMD?

Sure.


> Has that day arrived?

Pragmatically, yes. Technically, no.

On Sunday, 11 November 2018 at 23:40:16 UTC, Walter Bright wrote:
> As:
>
> https://github.com/dlang/dmd/pull/8946
>
> removes the header files for the old C++ code!

This makes me happy.

On 2018-11-12 03:37, Walter Bright wrote:
> On 11/11/2018 3:58 PM, Mike Franklin wrote:
>> This is a significant milestone.  Congratulations, Walter!
>
> Many people helped out with this, too.
>
>> There are still a few .c files in
>> https://github.com/dlang/dmd/tree/master/src/dmd/backend, so what's
>> the significance of those?
>
> tk.c
> fp.c
> os.c
> strtold.c
> tk/mem.c
>
> These could be converted too, but are independent from everything else
> and hardly seem worth the bother. Sebastian has a PR for os.cd.

dmd/root/ctfloat.d depends on the "strtold_dm" function defined in strtold.c [2] when compiling using Visual Studio. That means that the Dub package cannot be compile using Visual Studio without this file.

[1] https://github.com/dlang/dmd/blob/4df5d6a6e8775754148939beb6de827fe4b0b9ab/src/dmd/root/ctfloat.d#L167-L170

[2] https://github.com/dlang/dmd/blob/4df5d6a6e8775754148939beb6de827fe4b0b9ab/src/dmd/backend/strtold.c#L138

-- 
/Jacob Carlborg

On 2018-11-12 00:40, Walter Bright wrote:
> As:
>
> https://github.com/dlang/dmd/pull/8946
>
> removes the header files for the old C++ code!

BTW, this is great news :)

-- 
/Jacob Carlborg

On 13/11/2018 12:12 AM, Jacob Carlborg wrote:
> On 2018-11-12 03:37, Walter Bright wrote:
>> On 11/11/2018 3:58 PM, Mike Franklin wrote:
>>> This is a significant milestone.  Congratulations, Walter!
>>
>> Many people helped out with this, too.
>>
>>> There are still a few .c files in
>>> https://github.com/dlang/dmd/tree/master/src/dmd/backend, so what's
>>> the significance of those?
>>
>> tk.c
>> fp.c
>> os.c
>> strtold.c
>> tk/mem.c
>>
>> These could be converted too, but are independent from everything else
>> and hardly seem worth the bother. Sebastian has a PR for os.cd.
> 
> dmd/root/ctfloat.d depends on the "strtold_dm" function defined in strtold.c [2] when compiling using Visual Studio. That means that the Dub package cannot be compile using Visual Studio without this file.
> 
> [1] https://github.com/dlang/dmd/blob/4df5d6a6e8775754148939beb6de827fe4b0b9ab/src/dmd/root/ctfloat.d#L167-L170 
> 
> 
> [2] https://github.com/dlang/dmd/blob/4df5d6a6e8775754148939beb6de827fe4b0b9ab/src/dmd/backend/strtold.c#L138 

That module needs a right rethink for dmd-fe as a library purposes.

https://issues.dlang.org/show_bug.cgi?id=18810

On Monday, 12 November 2018 at 02:37:54 UTC, Walter Bright wrote:
> On 11/11/2018 3:58 PM, Mike Franklin wrote:
>> This is a significant milestone.  Congratulations, Walter!
>
> Many people helped out with this, too.
>
>> There are still a few .c files in https://github.com/dlang/dmd/tree/master/src/dmd/backend, so what's the significance of those?
>
> tk.c
> fp.c
> os.c
> strtold.c
> tk/mem.c
>
> These could be converted too, but are independent from everything else and hardly seem worth the bother. Sebastian has a PR for os.cd.
>
>
>> Will there ever be a day when we no longer need a C/C++ compiler to build DMD?
>
> Sure.
>

No, as phobos is dependent on C libraries such as a zlib for example.
Also D is dependent on libc.