Closed
Description
It's good in version 9.1.0 (https://godbolt.org/z/e5rzjxbEb), but starts failing since v10 (https://godbolt.org/z/fEdsc75rb):
/opt/compiler-explorer/libs/fmt/10.2.1/include/fmt/core.h:1828:39: error: constexpr variable 'desc' must be initialized by a constant expression
1828 | static constexpr unsigned long long desc =
| ^
1829 | (is_packed ? detail::encode_types<Context, Args...>()
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1830 | : detail::is_unpacked_bit | num_args) |
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1831 | (num_named_args != 0
| ~~~~~~~~~~~~~~~~~~~~
1832 | ? static_cast<unsigned long long>(detail::has_named_args_bit)
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1833 | : 0);