13 Aug
2010
13 Aug
'10
11:11 a.m.
2010/8/12 gast128
Hello all, small question: there seems no xor operator in c++ but there is also no Boost xor functor (like the std::logical_and)? Scenario: I have 2 data members used in variant like way: only 1 may be valid. Both valid or both invalid is incorrect.
Can't you use !!A != !!B? (or !!A ^ !!B)
ah quite brilliant! I was thinking about the (a ? !b : b). Still a logical_xor does also has a documentation value.
operator^ works fine for booleans, and I guess that's what you want to apply logical_xor to. bool a, b; bool c = a ^ b; // Fine. Roman Perepelitsa.