ほおらみんな大好き規格だよ
文面そのものしか理解できない人には
文の意味するところを正しく理解するのは難しいのかなあ？
> 25 Algorithms library
> 25.5 Sorting and related operations
> p3 For all algorithms that take Compare, there is a version that uses operator< instead. That is, comp(*i, *j)
> != false defaults to *i < *j != false. For algorithms other than those described in 25.5.3, comp shall
> induce a strict weak ordering on the values.