| Issue |
134193
|
| Summary |
Clang behaves different with other compilers for constraint nested lambdas
|
| Labels |
clang:frontend,
concepts
|
| Assignees |
|
| Reporter |
zyn0217
|
Both were discovered in #133719, but the underlying causes are different from the original issue so I filed a separate one to track these.
1. The following code causes clang to crash, dating back to Clang 16 and up to trunk:
```cpp
template <class T>
constexpr auto f{[] (auto arg) {
return [a{arg}] {
[] () requires (a == 1) {}();
};
}};
int main() {
f<int>(0);
}
```
https://compiler-explorer.com/z/Tq9xzrPns
2. Clang accepts the following code, while others don't (discovered by @shafik)
```cpp
void f() {
auto f{
[](auto arg) {
return [a = arg]()
requires (a == 1)
{ return a;};
}
};
f(10);
}
```
https://godbolt.org/z/ncYx8q9f6
This has started since Clang 16.
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