Given the freestanding remarks at https://www.sandordargo.com/blog/2026/03/18/cpp26-span-improvements blog post.
> As freestanding environments generally cannot support exceptions, parts of these facilities cannot be included. Specifically, span::at() (since it throws std::outofrange) and all overloads of std::expected::value() are excluded from the freestanding subset.
It appears that once again, even with C++26 hardening runtime, there were some security improvements that were left out of the table when targeting freestanding environments.
Like possibly having some
try_at() that would return std::optional or std::expected result types.At least looking at the proposed
std::span I am not able to find such alternatives.https://redd.it/1rwznpr
@r_cpp