<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/116502>116502</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [libcxx]: `string::__insert_with_size` misses `std::move`
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            libc++
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          hewillk
      </td>
    </tr>
</table>

<pre>
    https://github.com/llvm/llvm-project/blob/935d753c6dca0cd9bc5ea14fde5b00386ebcc5be/libcxx/include/string#L3085
testcase:
```cpp
#include <sstream>
#include <string>
#include <ranges>
 
int main() {
 auto is = std::istringstream{"a b c d"};
  auto chars = std::views::istream<int>(is);
  std::string s;
 s.insert_range(s.begin(), std::views::counted(chars.begin(), 3));
}
```
https://godbolt.org/z/Eh4EP8avE
</pre>
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