Date: 2010feb26 Language: C/C++ Keywords: lessthan, greaterthan, equals Q. Can I make a <= operator from existing < and == operators in my class? A. Yes, like this:

bool operator<=(const MyClass &b) const { return operator<(b) || operator==(b); } bool operator>=(const MyClass &b) const { return operator>(b) || operator==(b); }

I think it would be cool if C++ made this automatically for you.