Problem with ImportC example?

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Problem with ImportC example?
Jan 17, 2023 DLearner
Jan 17, 2023 Dennis
Jan 17, 2023 DLearner
Jan 17, 2023 bachmeier
Jan 17, 2023 DLearner
Jan 17, 2023 ryuukk_
Jan 17, 2023 DLearner
Jan 17, 2023 DLearner
Jan 17, 2023 Ali Çehreli
Jan 18, 2023 DLearner
Jan 18, 2023 Salih Dincer
Jan 18, 2023 DLearner
Jan 18, 2023 Ali Çehreli
Jan 18, 2023 bachmeier
Jan 18, 2023 bachmeier
Jan 18, 2023 zjh
Jan 18, 2023 zjh

January 17, 2023

Posted by DLearner

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DLearner

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This relates to the first example under 41.1 Quick Examples.

Stored as ex01.c, run as shown.

#include <stdio.h>
int main()
{
   printf("hello world\n");
   return 0;
}

Produced:


C:\Users\SoftDev\Documents\BDM\D\ImportC>dmd ex01.c
ex01.c(1): Error: C preprocessor directive `#include` is not supported
ex01.c(1): Error: no type for declarator before `#`
ex01.c(5): Error: no type for declarator before `return`
ex01.c(6): Error: no type for declarator before `}`

January 17, 2023

Re: Problem with ImportC example?

Posted by Dennis
in reply to DLearner

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Dennis

Posted in reply to DLearner

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On Tuesday, 17 January 2023 at 11:16:25 UTC, DLearner wrote:


C:\Users\SoftDev\Documents\BDM\D\ImportC>dmd ex01.c
ex01.c(1): Error: C preprocessor directive `#include` is not supported
ex01.c(1): Error: no type for declarator before `#`
ex01.c(5): Error: no type for declarator before `return`
ex01.c(6): Error: no type for declarator before `}`

What is your dmd --version? I suspect you have a version where you still have to manually pre-process the .c file, instead of a more recent version which invokes the pre-processor itself.

January 17, 2023

Re: Problem with ImportC example?

Posted by DLearner
in reply to Dennis

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DLearner

Posted in reply to Dennis

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On Tuesday, 17 January 2023 at 11:21:08 UTC, Dennis wrote:

On Tuesday, 17 January 2023 at 11:16:25 UTC, DLearner wrote:


C:\Users\SoftDev\Documents\BDM\D\ImportC>dmd ex01.c
ex01.c(1): Error: C preprocessor directive `#include` is not supported
ex01.c(1): Error: no type for declarator before `#`
ex01.c(5): Error: no type for declarator before `return`
ex01.c(6): Error: no type for declarator before `}`

What is your dmd --version? I suspect you have a version where you still have to manually pre-process the .c file, instead of a more recent version which invokes the pre-processor itself.

C:\Users\SoftDev>dmd --version
DMD32 D Compiler v2.100.2-dirty
Copyright (C) 1999-2022 by The D Language Foundation, All Rights Reserved written by Walter Bright

January 17, 2023

Re: Problem with ImportC example?

Posted by bachmeier
in reply to DLearner

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bachmeier

Posted in reply to DLearner

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On Tuesday, 17 January 2023 at 13:21:37 UTC, DLearner wrote:

On Tuesday, 17 January 2023 at 11:21:08 UTC, Dennis wrote:

On Tuesday, 17 January 2023 at 11:16:25 UTC, DLearner wrote:


C:\Users\SoftDev\Documents\BDM\D\ImportC>dmd ex01.c
ex01.c(1): Error: C preprocessor directive `#include` is not supported
ex01.c(1): Error: no type for declarator before `#`
ex01.c(5): Error: no type for declarator before `return`
ex01.c(6): Error: no type for declarator before `}`

What is your dmd --version? I suspect you have a version where you still have to manually pre-process the .c file, instead of a more recent version which invokes the pre-processor itself.

C:\Users\SoftDev>dmd --version
DMD32 D Compiler v2.100.2-dirty
Copyright (C) 1999-2022 by The D Language Foundation, All Rights Reserved written by Walter Bright

You may want to use the nightly build if you're working with ImportC: https://github.com/dlang/dmd/releases/tag/nightly They're doing a lot of work with it.

January 17, 2023

Re: Problem with ImportC example?

Posted by DLearner
in reply to bachmeier

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DLearner

Posted in reply to bachmeier

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On Tuesday, 17 January 2023 at 15:55:40 UTC, bachmeier wrote:

On Tuesday, 17 January 2023 at 13:21:37 UTC, DLearner wrote:

On Tuesday, 17 January 2023 at 11:21:08 UTC, Dennis wrote:

On Tuesday, 17 January 2023 at 11:16:25 UTC, DLearner wrote:


C:\Users\SoftDev\Documents\BDM\D\ImportC>dmd ex01.c
ex01.c(1): Error: C preprocessor directive `#include` is not supported
ex01.c(1): Error: no type for declarator before `#`
ex01.c(5): Error: no type for declarator before `return`
ex01.c(6): Error: no type for declarator before `}`

What is your dmd --version? I suspect you have a version where you still have to manually pre-process the .c file, instead of a more recent version which invokes the pre-processor itself.

C:\Users\SoftDev>dmd --version
DMD32 D Compiler v2.100.2-dirty
Copyright (C) 1999-2022 by The D Language Foundation, All Rights Reserved written by Walter Bright

You may want to use the nightly build if you're working with ImportC: https://github.com/dlang/dmd/releases/tag/nightly They're doing a lot of work with it.

Downloaded latest dmd for windows from website:

C:\Users\SoftDev>dmd --version
DMD32 D Compiler v2.101.2-dirty
Copyright (C) 1999-2022 by The D Language Foundation, All Rights Reserved written by Walter Bright

But trial still failed:

C:\Users\SoftDev\Documents\BDM\D\ImportC>dmd ex01.c
failed launching cl.exe /P /Zc:preprocessor /PD /nologo ex01.c /FIC:\D\dmd2\windows\bin\..\..\src\druntime\import\importc.h /Fiex01.i
Error: C preprocess command cl.exe failed for file ex01.c, exit status 1

January 17, 2023

Re: Problem with ImportC example?

Posted by ryuukk_
in reply to DLearner

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ryuukk_

Posted in reply to DLearner

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On Tuesday, 17 January 2023 at 17:12:49 UTC, DLearner wrote:

On Tuesday, 17 January 2023 at 15:55:40 UTC, bachmeier wrote:

On Tuesday, 17 January 2023 at 13:21:37 UTC, DLearner wrote:

On Tuesday, 17 January 2023 at 11:21:08 UTC, Dennis wrote:

On Tuesday, 17 January 2023 at 11:16:25 UTC, DLearner wrote:


C:\Users\SoftDev\Documents\BDM\D\ImportC>dmd ex01.c
ex01.c(1): Error: C preprocessor directive `#include` is not supported
ex01.c(1): Error: no type for declarator before `#`
ex01.c(5): Error: no type for declarator before `return`
ex01.c(6): Error: no type for declarator before `}`

What is your dmd --version? I suspect you have a version where you still have to manually pre-process the .c file, instead of a more recent version which invokes the pre-processor itself.

C:\Users\SoftDev>dmd --version
DMD32 D Compiler v2.100.2-dirty
Copyright (C) 1999-2022 by The D Language Foundation, All Rights Reserved written by Walter Bright

You may want to use the nightly build if you're working with ImportC: https://github.com/dlang/dmd/releases/tag/nightly They're doing a lot of work with it.

Downloaded latest dmd for windows from website:

C:\Users\SoftDev>dmd --version
DMD32 D Compiler v2.101.2-dirty
Copyright (C) 1999-2022 by The D Language Foundation, All Rights Reserved written by Walter Bright

But trial still failed:

C:\Users\SoftDev\Documents\BDM\D\ImportC>dmd ex01.c
failed launching cl.exe /P /Zc:preprocessor /PD /nologo ex01.c /FIC:\D\dmd2\windows\bin\..\..\src\druntime\import\importc.h /Fiex01.i
Error: C preprocess command cl.exe failed for file ex01.c, exit status 1

It works for me

C:\Users\ryuukk\tmp>dmd -run ex01.c
hello world

Double check your visual studio installation, something is wrong with your install probably

January 17, 2023

Re: Problem with ImportC example?

Posted by DLearner
in reply to ryuukk_

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DLearner

Posted in reply to ryuukk_

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On Tuesday, 17 January 2023 at 17:36:41 UTC, ryuukk_ wrote:

On Tuesday, 17 January 2023 at 17:12:49 UTC, DLearner wrote:

On Tuesday, 17 January 2023 at 15:55:40 UTC, bachmeier wrote:

On Tuesday, 17 January 2023 at 13:21:37 UTC, DLearner wrote:

On Tuesday, 17 January 2023 at 11:21:08 UTC, Dennis wrote:

On Tuesday, 17 January 2023 at 11:16:25 UTC, DLearner wrote:


C:\Users\SoftDev\Documents\BDM\D\ImportC>dmd ex01.c
ex01.c(1): Error: C preprocessor directive `#include` is not supported
ex01.c(1): Error: no type for declarator before `#`
ex01.c(5): Error: no type for declarator before `return`
ex01.c(6): Error: no type for declarator before `}`

What is your dmd --version? I suspect you have a version where you still have to manually pre-process the .c file, instead of a more recent version which invokes the pre-processor itself.

C:\Users\SoftDev>dmd --version
DMD32 D Compiler v2.100.2-dirty
Copyright (C) 1999-2022 by The D Language Foundation, All Rights Reserved written by Walter Bright

You may want to use the nightly build if you're working with ImportC: https://github.com/dlang/dmd/releases/tag/nightly They're doing a lot of work with it.

Downloaded latest dmd for windows from website:

C:\Users\SoftDev>dmd --version
DMD32 D Compiler v2.101.2-dirty
Copyright (C) 1999-2022 by The D Language Foundation, All Rights Reserved written by Walter Bright

But trial still failed:

C:\Users\SoftDev\Documents\BDM\D\ImportC>dmd ex01.c
failed launching cl.exe /P /Zc:preprocessor /PD /nologo ex01.c /FIC:\D\dmd2\windows\bin\..\..\src\druntime\import\importc.h /Fiex01.i
Error: C preprocess command cl.exe failed for file ex01.c, exit status 1

It works for me

C:\Users\ryuukk\tmp>dmd -run ex01.c
hello world

Double check your visual studio installation, something is wrong with your install probably

Tried twice - same result.

But VS installation is itself (IMO) not particularly intuitive.
Would it be possible either to cite known working VS installation options on DLang website, or produce Windows installation script that takes such options automatically?

January 17, 2023

Re: Problem with ImportC example?

Posted by DLearner
in reply to DLearner

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DLearner

Posted in reply to DLearner

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On Tuesday, 17 January 2023 at 19:17:31 UTC, DLearner wrote:

On Tuesday, 17 January 2023 at 17:36:41 UTC, ryuukk_ wrote:

On Tuesday, 17 January 2023 at 17:12:49 UTC, DLearner wrote:

On Tuesday, 17 January 2023 at 15:55:40 UTC, bachmeier wrote:
[...]

Downloaded latest dmd for windows from website:

C:\Users\SoftDev>dmd --version
DMD32 D Compiler v2.101.2-dirty
Copyright (C) 1999-2022 by The D Language Foundation, All Rights Reserved written by Walter Bright

But trial still failed:

C:\Users\SoftDev\Documents\BDM\D\ImportC>dmd ex01.c
failed launching cl.exe /P /Zc:preprocessor /PD /nologo ex01.c /FIC:\D\dmd2\windows\bin\..\..\src\druntime\import\importc.h /Fiex01.i
Error: C preprocess command cl.exe failed for file ex01.c, exit status 1

It works for me

C:\Users\ryuukk\tmp>dmd -run ex01.c
hello world

Double check your visual studio installation, something is wrong with your install probably

Tried twice - same result.

FWIW, now tried a few standard D programs, work fine.
Suggesting VS is not the problem?

January 17, 2023

Re: Problem with ImportC example?

Posted by Ali Çehreli
in reply to DLearner

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Ali Çehreli

Posted in reply to DLearner

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On 1/17/23 12:02, DLearner wrote:

>>>> C:\Users\SoftDev\Documents\BDM\D\ImportC>dmd ex01.c
>>>> failed launching cl.exe /P /Zc:preprocessor [...]

I don't use Windows for development but that error message makes me think cl.exe is not found to be executed.

dmd relies on system compiler programs for its ImportC feature. cl.exe seems to be the compiler. I think it is the compiler.

Can you run that program from the command line?

Internet makes me think Visual Studio does not install it by default. (?) You may have to select C++ (or C?) when installing. (?)

> FWIW, now tried a few standard D programs, work fine.
> Suggesting VS is not the problem?

Standard D programs don't need a C compiler; dmd is the D compiler. It needs a C compiler (to preprocess C sources) for ImportC.

Ali

January 18, 2023

Re: Problem with ImportC example?

Posted by zjh
in reply to DLearner

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zjh

Posted in reply to DLearner

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On Tuesday, 17 January 2023 at 11:16:25 UTC, DLearner wrote:

With the latest version of 'dmd101.2',dmd a.c, I get:
C:\Windows Kits\10\Include\10.0.22000.0\ucrt\corecrt_wstdio.h|1208| Error: function a.__vswprintf_l redeclaration with different type
C:\Windows Kits\10\Include\10.0.22000.0\ucrt\corecrt_wstdio.h|1405| Error: function a.__swprintf_l redeclaration with different type

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