James Widman
@JamesWidman@mastodon.social replied  ·  activity timestamp 2 weeks ago
@aeva @hipsterelectron i never noticed this before, but: in C++, the only difference between "unspecified" and "implementation-defined" is a requirement to provide documentation:

https://eel.is/c++draft/defns.impl.defined
https://eel.is/c++draft/defns.unspecified

(so e.g. where the standard says that the details of searching for a header file for an ` #include` are implementation-defined, that means the compiler vendor needs to document its rules for header searching (otherwise it's not a conforming implementation).)