https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109642
Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mpolacek at gcc dot gnu.org --- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> --- Sorry, you need to use #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wdangling-reference" ... #pragma GCC diagnostic pop when using MySpan here, because the compiler can't figure out it's std::span-like.