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<p class="MsoNormal"><span lang="DE">Hey Clang-Team,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE"><o:p> </o:p></span></p>
<p class="MsoNormal">I’m a big fan of the Clang-cl compiler and its integration into VisualStudio2017 – I use it for private projects and even try to establish the compiler in my company.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Today I tried diving into Coroutines – a C++20 feature if I’m not mistaken. I followed a simple tutorial and created a source file, which I will attach to this mail.<o:p></o:p></p>
<p class="MsoNormal">Compiling this file with Clang-cl leads to a linker error: “unresolved external symbol _coro_destroy”<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">For me _coro_destoy seems to be the intrinsic for “__builtin_coro_destory” so I made a define statement to replace _coro_destory with the builtin function from Clang. That compiles! But calling the function will lead to a crash…<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="text-align:justify">So I decided to go another way, I used the define statement to replace _coro_destory with an external function “_coro_destory2” – I generated an object file with that function, simply calling the _coro_destory
intrinsic inside – compiled with MSVC2017. Sadly… this crashes as well…<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">When I compile the code with the VisualStudio compiler, then it works.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Long story short: can’t I use Coroutines in Clang-cl? Or in a Visual Studio project with Clan-cl?
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Kind greetings<o:p></o:p></p>
<p class="MsoNormal">Björn<o:p></o:p></p>
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