C++ Reactive Programming

Conditional and Boolean Operators

The Conditional and Boolean Operators  are Operators that evaluate one or more Observables or items emitted by Observables: 

Observables	Description
all	Observable that emits true if every item emitted by the source Observable satisfies a specified condition; otherwise, it emits false
amb	Observable that emits  same sequence as whichever of  source Observables first emitted an item or sent a termination notification
contains	An Observable that emits true if the source Observable emitted a specified item; otherwise it emits false
default_if_empty	An Observable that emits true if the source Observable emitted a specified item; otherwise it emits false
sequence_equal	Observable ...