rx-error.hpp File Reference

Returns an observable that sends no items to observer and immediately generates an error, on the specified scheduler. More...

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

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Namespaces
	rxcpp
	rxcpp::sources

Macros
#define	RXCPP_SOURCES_RX_ERROR_HPP

Functions
template<class T , class E >
auto	rxcpp::sources::error (E e) -> decltype(detail::make_error< T >(typename std::conditional< std::is_same< std::exception_ptr, rxu::decay_t< E >>::value, detail::throw_ptr_tag, detail::throw_instance_tag >::type(), std::move(e), identity_immediate()))
	Returns an observable that sends no items to observer and immediately generates an error, on the specified scheduler. More...
template<class T , class E , class Coordination >
auto	rxcpp::sources::error (E e, Coordination cn) -> decltype(detail::make_error< T >(typename std::conditional< std::is_same< std::exception_ptr, rxu::decay_t< E >>::value, detail::throw_ptr_tag, detail::throw_instance_tag >::type(), std::move(e), std::move(cn)))
	Returns an observable that sends no items to observer and immediately generates an error, on the specified scheduler. More...

Detailed Description

Returns an observable that sends no items to observer and immediately generates an error, on the specified scheduler.

Template Parameters

T	the type of (not) emitted items
Exception	the type of the error
Coordination	the type of the scheduler (optional)

Parameters

e	the error to be passed to observers
cn	the scheduler to use for scheduling the items (optional)

Returns

Observable that sends no items to observer and immediately generates an error.

Sample Code

    auto values = rxcpp::observable<>::error<int>(std::runtime_error("Error from source"));
    values.
        subscribe(
            [](int v){printf("OnNext: %d\n", v);},
            [](std::exception_ptr ep){
                try {std::rethrow_exception(ep);}
                catch (const std::exception& ex) {
                    printf("OnError: %s\n", ex.what());
                }
            },
            [](){printf("OnCompleted\n");});

OnError: Error from source

Sample Code

    auto values = rxcpp::observable<>::error<int>(std::runtime_error("Error from source"), rxcpp::observe_on_event_loop());
    values.
        as_blocking().
        subscribe(
            [](int v){printf("OnNext: %d\n", v);},
            [](std::exception_ptr ep){
                try {std::rethrow_exception(ep);}
                catch (const std::exception& ex) {
                    printf("OnError: %s\n", ex.what());
                }
            },
            [](){printf("OnCompleted\n");});

OnError: Error from source

Macro Definition Documentation

#define RXCPP_SOURCES_RX_ERROR_HPP