Re: [boost] review request: addition to type_traits library of is_less_comparable<T, U> and others

I am starting again to work on adding new traits to detect if two types can be compared (is_less_comparable<T,U> and has_operator_less<T,U>). Sorry for the long break but I could not find any time for this in the past weeks. A recent post on the list makes me think that we could enlarge the scope of the addition. In fact, here is the list of binary operators for which we could implement type trait detection: * comparisons: <, <=, >, >=, ==, != * arithmetic operations: +, -, *, /, % * logical operations: && (and), || (or) * bitwise operations: <<, >>, ^ (xor), & (bitand), | (bitor) I a in favor of implementing type traits to detect comparison and arithmetic operators. What for logical and bitwise operations? Frédéric