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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - clang falls on a valid code with an error: 'no matching constructor for initialization'"
href="https://bugs.llvm.org/show_bug.cgi?id=47357">47357</a>
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<th>Summary</th>
<td>clang falls on a valid code with an error: 'no matching constructor for initialization'
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>C++2a
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>tangyixuan@mail.dlut.edu.cn
</td>
</tr>
<tr>
<th>CC</th>
<td>blitzrakete@gmail.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
</td>
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<p>
<div>
<pre>Clang++ rejects the following code, while g++ accepts.
$ cat s.cpp
struct A
{
int a;
};
void f()
{
auto y = new A(1);
}
$ clang -v
clang version 11.0.0 (<a href="https://github.com/llvm/llvm-project.git">https://github.com/llvm/llvm-project.git</a>
ab4627364aefcaac751e757b721b7d07b48a545a)
Target: x86_64-unknown-linux-gnu
Thread model: posix
$ g++ -c -std=c++2a s.cpp
success.
$ clang++ -c std=c++2a s.cpp
s.cpp:8:16: error: no matching constructor for initialization of 'A'
auto y = new A(1);
^ ~
s.cpp:1:8: note: candidate constructor (the implicit copy constructor) not
viable: no known conversion from 'int' to 'const A' for 1st argument
struct A
^
s.cpp:1:8: note: candidate constructor (the implicit move constructor) not
viable: no known conversion from 'int' to 'A' for 1st argument
struct A
^
s.cpp:1:8: note: candidate constructor (the implicit default constructor) not
viable: requires 0 arguments, but 1 was provided
1 error generated.</pre>
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