<html>
<head>
<base href="https://llvm.org/bugs/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - std::tuple compilation errors with implicit conversion constructors"
href="https://llvm.org/bugs/show_bug.cgi?id=29123">29123</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>std::tuple compilation errors with implicit conversion constructors
</td>
</tr>
<tr>
<th>Product</th>
<td>libc++
</td>
</tr>
<tr>
<th>Version</th>
<td>3.9
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>All Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>akotulski@fb.com
</td>
</tr>
<tr>
<th>CC</th>
<td>eric@efcs.ca, llvm-bugs@lists.llvm.org, mclow.lists@gmail.com
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=17037" name="attach_17037" title="compilation error message">attachment 17037</a> <a href="attachment.cgi?id=17037&action=edit" title="compilation error message">[details]</a></span>
compilation error message
I encountered this error when trying to use libcxx from 3.9 release and trunk
from around August 1st. The same code works with 3.8 release
Repro: compile following example with libc++:
clang -c -std=c++14 repro.cpp -stdlib=libc++
// repro.cpp
// this is minimized code from folly library
#include<tuple>
template<class Value>
struct Optional {
// implicit
Optional(const Value& newValue) {}
};
struct dynamic {
// implicit
template<class T> dynamic(T t);
};
Optional<std::tuple<dynamic>> get();
void test() { auto x = get(); }</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>