• egordeev (6/6) May 16 2016 Hello, everyone,
• David Nadlinger via digitalmars-d-ldc (6/10) May 16 2016 Clang and LDC will almost certainly differ in the format of the byte
• Kai Nacke (9/15) May 16 2016 Hi egordeev,
• Stefan Koch (2/8) May 25 2016 Have a look at calypso which integrates ldc and clang.

egordeev <egordeev18 gmail.com> writes:

Hello, everyone,
just curious, can we achive compatibility of c++ programs with d 
programms, i.e. can we use c++ functions, classes, etc. in d 
programs relying on compatibility of bytecodes, generated by 
Clang and LDC, and not on the level of ABI?
If so, what are the obstacle if they are exist?

David Nadlinger via digitalmars-d-ldc <digitalmars-d-ldc puremagic.com> writes:

On 16 May 2016, at 14:20, egordeev via digitalmars-d-ldc wrote:
 can we achive compatibility of c++ programs with d programms, i.e. can 
 we use c++ functions, classes, etc. in d programs relying on 
 compatibility of bytecodes, generated by Clang and LDC, and not on the 
 level of ABI?

Clang and LDC will almost certainly differ in the format of the byte 
code they emit. However, it should always be possible to just bitcast 
the values (data, function pointers) appropriately to make them 
compatible.

  — David

Kai Nacke <kai redstar.de> writes:

On Monday, 16 May 2016 at 13:20:12 UTC, egordeev wrote:
 Hello, everyone,
 just curious, can we achive compatibility of c++ programs with 
 d programms, i.e. can we use c++ functions, classes, etc. in d 
 programs relying on compatibility of bytecodes, generated by 
 Clang and LDC, and not on the level of ABI?
 If so, what are the obstacle if they are exist?

Hi egordeev,

it depends on your goal. The LLVM bytecode is not independent of 
the target system. E.g. differences in the ABI are also reflected 
in the byte code.

But as David said: in most cases you can work around problems 
using a bitcast.

Regards,
Kai

Stefan Koch <uplink.coder googlemail.com> writes:

On Monday, 16 May 2016 at 13:20:12 UTC, egordeev wrote:
 Hello, everyone,
 just curious, can we achive compatibility of c++ programs with 
 d programms, i.e. can we use c++ functions, classes, etc. in d 
 programs relying on compatibility of bytecodes, generated by 
 Clang and LDC, and not on the level of ABI?
 If so, what are the obstacle if they are exist?

Have a look at calypso which integrates ldc and clang.