Re: compile error while use `extern(C++, class)`
On Thursday, 18 August 2016 at 16:19:41 UTC, Johan Engelen wrote: On Thursday, 18 August 2016 at 11:43:03 UTC, Lodovico Giaretta wrote: Which compiler version are you using? On DMD 2.071.0 this does not work. Note: this does work with LDC 1.1.0 even though it is based on DMD 2.071. https://github.com/ldc-developers/ldc/releases/tag/v1.1.0-beta2 Well, LDC 1.1.0 is based on DMD 2.071.1, while I tested the above code on asm.dlang.org with DMD 2.071.0, so maybe on DMD 2.071.1 it works too. On nightly it works for sure. So again nothing wrong here, just a matter of having the most recent compiler version.
Re: compile error while use `extern(C++, class)`
On Thursday, 18 August 2016 at 11:43:03 UTC, Lodovico Giaretta
wrote:
On Thursday, 18 August 2016 at 11:11:10 UTC, mogu wrote:
Compiler Error exactly. The minimal code is(dmd or ldc2 in
ubuntu 16.04 lts):
```
extern (C++, struct)
class A {}
```
Error: identifier expected for C++ namespace found 'struct'
when expecting ')' declaration expected, not ')'
Which compiler version are you using? On DMD 2.071.0 this does
not work.
Note: this does work with LDC 1.1.0 even though it is based on
DMD 2.071.
https://github.com/ldc-developers/ldc/releases/tag/v1.1.0-beta2
Re: compile error while use `extern(C++, class)`
On Thursday, 18 August 2016 at 11:43:03 UTC, Lodovico Giaretta
wrote:
On Thursday, 18 August 2016 at 11:11:10 UTC, mogu wrote:
On Thursday, 18 August 2016 at 10:45:14 UTC, Lodovico Giaretta
wrote:
Which kind of error? An error message by the compiler? One by
the linker? The compiler crashes?
Compiler Error exactly. The minimal code is(dmd or ldc2 in
ubuntu 16.04 lts):
```
extern (C++, struct)
class A {}
```
Error: identifier expected for C++ namespace found 'struct'
when expecting ')' declaration expected, not ')'
Which compiler version are you using? On DMD 2.071.0 this does
not work. On nightly build it compiles without errors. So
probably it is a feature that is present, but didn't ship yet.
I suggest you download the latest beta or a nightly build from
the site.
Wouldn't this be more syntactically consistent if it were "Cpp"
instead of "C++"?
Re: compile error while use `extern(C++, class)`
On Thursday, 18 August 2016 at 11:11:10 UTC, mogu wrote:
On Thursday, 18 August 2016 at 10:45:14 UTC, Lodovico Giaretta
wrote:
Which kind of error? An error message by the compiler? One by
the linker? The compiler crashes?
Compiler Error exactly. The minimal code is(dmd or ldc2 in
ubuntu 16.04 lts):
```
extern (C++, struct)
class A {}
```
Error: identifier expected for C++ namespace found 'struct'
when expecting ')' declaration expected, not ')'
Which compiler version are you using? On DMD 2.071.0 this does
not work. On nightly build it compiles without errors. So
probably it is a feature that is present, but didn't ship yet. I
suggest you download the latest beta or a nightly build from the
site.
Re: compile error while use `extern(C++, class)`
On Thursday, 18 August 2016 at 10:45:14 UTC, Lodovico Giaretta
wrote:
Which kind of error? An error message by the compiler? One by
the linker? The compiler crashes?
Compiler Error exactly. The minimal code is(dmd or ldc2 in ubuntu
16.04 lts):
```
extern (C++, struct)
class A {}
```
Error: identifier expected for C++ namespace found 'struct' when
expecting ')' declaration expected, not ')'
compile error while use `extern(C++, class)`
From spec (Interfacing to C++) https://dlang.org/spec/cpp_interface.html: ``` When mapping a D class onto a C++ struct, use extern(C++, struct) to avoid linking problems with C++ compilers (notably MSVC) that distinguish between C++'s class and struct when mangling. Conversely, use extern(C++, class) to map a D struct onto a C++ class. ``` But this compiles error. Please help, thanks.
