Does Boost provide an implementation of span for C++14?

Question

std::span was introduced in C++20, but I'm limited to C++14 and, to a lesser extent, to Boost libraries of any version. Is there something similar in Boost?

Answer 1

As of Boost-1.78, boost::span is now part of the Boost core (see Boost::span docs). This is a C++11/14/17 compatible implementation of std::span.

Answer 2

Does Boost provide an implementation of span for C++14?

There is no span in the boost namespace. But Boost Beast library has boost::beast::span. It appears to not implement the same interface as std::span exactly, but is an implementation of the same similar idea.

There is also boost::hana::span which is something else.