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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Compilation error in std::tuple when using -fmodules-ts and -std=c++17"
href="https://bugs.llvm.org/show_bug.cgi?id=36261">36261</a>
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<th>Summary</th>
<td>Compilation error in std::tuple when using -fmodules-ts and -std=c++17
</td>
</tr>
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<th>Product</th>
<td>libc++
</td>
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<th>Version</th>
<td>5.0
</td>
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<th>Hardware</th>
<td>All
</td>
</tr>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>All Bugs
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>kumaran.santhanam@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, mclow.lists@gmail.com
</td>
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=19821" name="attach_19821" title="compile.sh">attachment 19821</a> <a href="attachment.cgi?id=19821&action=edit" title="compile.sh">[details]</a></span>
compile.sh
1. Install Clang 5.0
2. Download <a href="http://releases.llvm.org/5.0.1/libcxx-5.0.1.src.tar.xz">http://releases.llvm.org/5.0.1/libcxx-5.0.1.src.tar.xz</a>
3. Untar the package into a directory
4. Save the attached compile.sh script into the directory
5. ./compile.sh -std=c++11
6. ./compile.sh -std=c++17
Using -std=c++11 succeeds while using -std=c++17 produces a compilation error.
The problem appears to be in the #ifdef block starting at line 993 in the
libcxx-5.0.1.src/include/tuple header file.</pre>
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