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Indeed, as it is not exposed for the end-users it is not on the UsersManual page.<br>

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You can find documentation for it here: <a href="https://clang.llvm.org/docs/ClangCommandLineReference.html" id="LPlnk">

https://clang.llvm.org/docs/ClangCommandLineReference.html</a> taken from the help text I think.</div>

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But it still doesn't have the list of supported languages, so reading the source code seems the only way.<br>

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<br>

Anastasia<br>

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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> cfe-dev <cfe-dev-bounces@lists.llvm.org> on behalf of Andrzej Warzynski via cfe-dev <cfe-dev@lists.llvm.org><br>

<b>Sent:</b> 14 April 2021 17:37<br>

<b>To:</b> llvm-dev@lists.llvm.org <llvm-dev@lists.llvm.org>; cfe-dev@lists.llvm.org <cfe-dev@lists.llvm.org><br>

<b>Subject:</b> Re: [cfe-dev] [llvm-dev] Official documentation of -x of clang</font>

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<div class="PlainText">+cfe-dev<br>

<br>

I'm not aware of any documentation specifically for `-x`. You could <br>

check the implementation to get an idea:<br>

<br>

<a href="https://github.com/llvm/llvm-project/blob/main/clang/lib/Frontend/CompilerInvocation.cpp#L2703-L2754">https://github.com/llvm/llvm-project/blob/main/clang/lib/Frontend/CompilerInvocation.cpp#L2703-L2754</a><br>

<br>

-Andrzej<br>

<br>

On 10/04/2021 20:01, Peng Yu via llvm-dev wrote:<br>

> Hi,<br>

> <br>

> <a href="https://clang.llvm.org/docs/UsersManual.html">https://clang.llvm.org/docs/UsersManual.html</a><br>

> <br>

> I don't find the official documentation of -x of clang. Where is the<br>

> complete list of languages supported by -x? Thanks.<br>

> <br>

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