https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118763
--- Comment #5 from Valentin Tolmer <valentin at tolmer dot fr> ---
Note that there's the same issue with calling a class initializer with multiple
arguments (but not a function or a constructor).
Refactored example to remove ASAN:
```
#include <iostream>
struct s {
char c_;
s(char c) : c_(c) {std::cout << "constructed s " << c << "\n";}
~s(){std::cout << "destructed s " << c_ << "\n";}
};
struct a {
s b{'b'};
s c{'c'};
//a(s d, s e) : b(d), c(e){}
//a() = default;
};
a fn(){
return a{
s{'x'},
({ return a{}; s{'y'}; })
};
}
int main(){
fn();
}
```
prints:
constructed s x
constructed s b
constructed s c
destructed s c
destructed s b
The temporary s x is never destructed. Uncommenting the constructors removes
the temporary altogether. This one reproduces as far back as it will compile
(so, gcc 6.1).
