beast::Zero Struct Reference

Zero allows classes to offer efficient comparisons to zero. More...

Public Member Functions
	Zero ()=default

Detailed Description

Zero allows classes to offer efficient comparisons to zero.

Zero is a struct to allow classes to efficiently compare with zero without requiring an rvalue construction.

It's often the case that we have classes which combine a number and a unit. In such cases, comparisons like t > 0 or t != 0 make sense, but comparisons like t > 1 or t != 1 do not.

The class Zero allows such comparisons to be easily made.

The comparing class T either needs to have a method called signum() which returns a positive number, 0, or a negative; or there needs to be a signum function which resolves in the namespace which takes an instance of T and returns a positive, zero or negative number.

Definition at line 42 of file Zero.h.

Constructor & Destructor Documentation

Zero()

beast::Zero::Zero ( )

explicitdefault