rx-distinct_until_changed.hpp File Reference

For each item from this observable, filter out consequentially repeated values and emit only changes from the new observable that is returned. More...

#include "../rx-includes.hpp"

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Classes
struct	rxcpp::member_overload< distinct_until_changed_tag >

Namespaces
	rxcpp
	rxcpp::operators

Macros
#define	RXCPP_OPERATORS_RX_DISTINCT_UNTIL_CHANGED_HPP

Functions
template<class... AN>
auto	rxcpp::operators::distinct_until_changed (AN &&...an) -> operator_factory< distinct_until_changed_tag, AN... >
	For each item from this observable, filter out consequentially repeated values and emit only changes from the new observable that is returned. More...

Detailed Description

For each item from this observable, filter out consequentially repeated values and emit only changes from the new observable that is returned.

Template Parameters

BinaryPredicate

(optional) the type of the value comparing function. The signature should be equivalent to the following: bool pred(const T1& a, const T2& b);

Parameters

pred	(optional) the function that implements comparison of two values.

Returns

Observable that emits those items from the source observable that are distinct from their immediate predecessors.

Sample Code

    auto values = rxcpp::observable<>::from(1, 2, 2, 3, 3, 3, 4, 5, 5).distinct_until_changed();
    values.
        subscribe(
            [](int v){printf("OnNext: %d\n", v);},
            [](){printf("OnCompleted\n");});

OnNext: 1
OnNext: 2
OnNext: 3
OnNext: 4
OnNext: 5
OnCompleted

Macro Definition Documentation

#define RXCPP_OPERATORS_RX_DISTINCT_UNTIL_CHANGED_HPP