| Issue |
144280
|
| Summary |
Clang rejects templated consteval lambda within template
|
| Labels |
clang
|
| Assignees |
|
| Reporter |
dsacre
|
Consider this piece of code:
```cpp
template <int...>
consteval void foo()
{
constexpr auto bar = []<int...>() consteval {
return [](int* p) { *p = 42; };
};
(void) bar();
}
```
This compiles with Clang 18 and earlier, as well as with GCC. Later versions of Clang give this error:
```
<source>:5:26: error: variable 'p' cannot be implicitly captured in a lambda with no capture-default specified
5 | return [](int* p) { *p = 42; };
```
https://godbolt.org/z/dzqj9Pq9c
Removing `consteval` from the lambda gets the code to compile, as does converting either `foo()` or the lambda into a non-template.
I managed to bisect this down to commit 5e767bd7d16dcdfc1ad8b32ba399f969dd940f57.
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