cpp/utility/rel ops/operator cmp

Given a user-defined and  for objects of type, implements the usual semantics of other comparison operators.

@1@ Implements in terms of. @2@ Implements in terms of. @3@ Implements in terms of. @4@ Implements in terms of.

Return value
@1@ Returns if  is not equal to. @2@ Returns if  is greater than. @3@ Returns if  is less or equal to. @4@ Returns if  is greater or equal to.