static assert that the filter predicate is ok
static assert that the filter predicate is ok

alexeymarkov/RxCpp,ReactiveX/RxCpp,ReactiveX/RxCpp,Reactive-Extensions/RxCpp,Reactive-Extensions/RxCpp,Reactive-Extensions/RxCpp,alexeymarkov/RxCpp,alexeymarkov/RxCpp,ReactiveX/RxCpp