https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106276
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to David Binderman from comment #1) > This would help stop many folks, including me, reaching for their > dictionaries > to discover what the compiler is warning about. Don't use a dictionary then: https://en.cppreference.com/w/cpp/language/copy_elision https://en.wikipedia.org/wiki/Copy_elision https://stackoverflow.com/questions/12953127/what-are-copy-elision-and-return-value-optimization The gcc manual also explains the warning better than looking up individual words in a dictionary will. > Eschew prolixity. This is not prolixity, it's a term of art.