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digitalmars.D - No D->C++, right?

reply Nick Sabalausky <SeeWebsiteToContactMe semitwist.com> writes:
Am I correct in my understanding that we still don't have a reliable
tool to translate a D source to C or C++? Can LDC/GDC do anything like
that? (Doesn't LLVM have a C-outputting backend?)
Jul 13 2012
parent reply Kevin Cox <kevincox.ca gmail.com> writes:
On Jul 13, 2012 3:45 PM, "Nick Sabalausky" <
SeeWebsiteToContactMe semitwist.com> wrote:

 Am I correct in my understanding that we still don't have a reliable
 tool to translate a D source to C or C++? Can LDC/GDC do anything like
 that? (Doesn't LLVM have a C-outputting backend?)


Yes LLVM does.  I think GCC can do something like that too.  AFAIK this is
the only way to do it.
Jul 13 2012
next sibling parent Nick Sabalausky <SeeWebsiteToContactMe semitwist.com> writes:
On Fri, 13 Jul 2012 15:46:35 -0400
Kevin Cox <kevincox.ca gmail.com> wrote:


 On Jul 13, 2012 3:45 PM, "Nick Sabalausky" <
 SeeWebsiteToContactMe semitwist.com> wrote:

 Am I correct in my understanding that we still don't have a reliable
 tool to translate a D source to C or C++? Can LDC/GDC do anything
 like that? (Doesn't LLVM have a C-outputting backend?)


 
 Yes LLVM does.  I think GCC can do something like that too.  AFAIK
 this is the only way to do it.
 


Oh cool. Anyone know anything about the state of it? Ie, this is the
use-case I had in mind:

Currently using Marmalade (a C++-based system, uses basic
classes/inheritance, but nothing too fancy) on Windows to develop
iOS/Android stuff. Everything needs to be C/C++ (Marm's build system
is unfortunately closed-source and tied to a specific set of C/C++
compilers).

Ideally, it'd be fantastic if I could write my derived classes and
such in D and just machine translate to C++ as a pre-build step.
Although I suspect that's hoping for too much. So even just implementing
certain non-class functions in D, translated to plain C, could be
helpful.

Any idea if it's up to this yet, or if not, what shortcomings there
would be? Or staring points? (I haven't even used LDC or LLVM yet.) I'm
sure anything using GC would be out of the question, of course.

(Apologies, it's occurring to me know I probably should have put this
whole thread in D.learn...)
Jul 13 2012
prev sibling parent reply =?UTF-8?B?QWxleCBSw7hubmUgUGV0ZXJzZW4=?= <alex lycus.org> writes:
On 13-07-2012 21:46, Kevin Cox wrote:

 On Jul 13, 2012 3:45 PM, "Nick Sabalausky"
 <SeeWebsiteToContactMe semitwist.com
 <mailto:SeeWebsiteToContactMe semitwist.com>> wrote:
  >
  > Am I correct in my understanding that we still don't have a reliable
  > tool to translate a D source to C or C++? Can LDC/GDC do anything like
  > that? (Doesn't LLVM have a C-outputting backend?)
  >

 Yes LLVM does.  I think GCC can do something like that too.  AFAIK this
 is the only way to do it.


LLVM's C back end is deprecated since nobody used/maintained it.

Anyway, translating a D AST to C should be relatively trivial. Maybe you 
can base it on this: https://github.com/adamdruppe/dmd/tree/dtojs

-- 
Alex Rønne Petersen
alex lycus.org
http://lycus.org
Jul 13 2012
parent "Daniel Murphy" <yebblies nospamgmail.com> writes:
"Alex Rønne Petersen" <alex lycus.org> wrote in message 
news:jtq05i$26hh$1 digitalmars.com...

 On 13-07-2012 21:46, Kevin Cox wrote:


 Anyway, translating a D AST to C should be relatively trivial. Maybe you 
 can base it on this: https://github.com/adamdruppe/dmd/tree/dtojs


Or base it off the c-generating fork that that's based on. 
https://github.com/yebblies/dmd/tree/microd

No classes though (or much at all really) 



 Jul 13 2012