https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123613
Daniel Katz <katzdm at gmail dot com> changed:
What |Removed |Added
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CC| |katzdm at gmail dot com
--- Comment #1 from Daniel Katz <katzdm at gmail dot com> ---
Minimal reproduction:
```
#include <meta>
// #define CRASH_BABY_CRASH
template <typename T, auto ... Vs>
#ifdef CRASH_BABY_CRASH
constexpr auto construct_from = T{Vs...};
#else
constexpr T construct_from {Vs...};
#endif
struct Inner {};
struct Outer { Inner m; };
constexpr auto r = substitute(^^construct_from,
{ ^^Outer, ^^construct_from<Inner> });
```
https://godbolt.org/z/Gc7Yos1GW
As a nice aside, the entire original example works on trunk with that little
change:
https://godbolt.org/z/Th5x4jKrE
Really nice work :)
