<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/105558>105558</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Clang fails to compile correct program with consteval
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            clang
      </td>
    </tr>

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

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

<pre>
    https://godbolt.org/z/3o1G81ahn

```cpp

#include <array>
#include <iostream>
#include <ranges>
#include <string>

using namespace std;

template <size_t N>
consteval auto make_static(const string& str) {
    array<char, N> arr;
 str.copy(arr.data(), arr.size());
    return arr;
}

consteval string foo() { return string("some dynamic data") + " 42\n"; }

int main() {

// WORKS:
//    constexpr auto xxx = make_static<foo().size()>(foo());
//    cout << (xxx | ranges::to<string>());

   cout << (make_static<foo().size()>(foo()) | ranges::to<string>());

    return 0;
}
```

Clang fails to compile correct (I think yes :) program. GCC works. UB ?
</pre>
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