Paolo Carlini wrote: >Then, as far as *our* library (and compiler) are concerned, there is the >interesting example of basic_string::_M_disjunct: with Nathan's >substantive insight we came to the conclusion that such kind of >comparisons can be always meaningful to do (at the C++ library level) if >we use std::less<>() & co. > By the way, 20.3.3/8 is very precise about this.
Paolo.