C++ != and == operators
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Sorry for a really silly question, but does anybody know in C++ whether operator!= has to be specially defined as an operator if you already have an operator==, or if (lhs != rhs) implicitly does !(lhs.operator==(rhs)) ?
You have to define it on its own, but you can use the other operator for that definition, i.e. if 'a != b' is the same as '!(a == b)'.
You can however, just use operator == inside your operator !=:
EDIT: Bah, too slow [smile]
class Foo{public: bool operator==(const Foo& rhs) const { // Do comparison } bool operator!=(const Foo& rhs) const { return !(*this == rhs); }};EDIT: Bah, too slow [smile]
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