assert(RCString("abc") <= RCString("abc")); assert(RCString("abc") >= RCString("abc")); assert(RCString("abc") > RCString("Abc")); assert(RCString("Abc") < RCString("abc")); assert(RCString("abc") < RCString("abd")); assert(RCString("abc") > RCString("")); assert(RCString("") <= RCString("")); assert(RCString("") >= RCString(""));