ulib/3party/rxcpp/Rx/v2/examples/doxygen/exists.cpp

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2024-01-10 09:33:36 +08:00
#include "rxcpp/rx.hpp"
#include "rxcpp/rx-test.hpp"
#include "catch.hpp"
SCENARIO("exists sample") {
printf("//! [exists sample]\n");
auto values = rxcpp::observable<>::from(1, 2, 3, 4, 5).exists([](int n) { return n > 3; });
values.
subscribe(
[](bool v) { printf("OnNext: %s\n", v ? "true" : "false"); },
[]() { printf("OnCompleted\n"); });
printf("//! [exists sample]\n");
}
SCENARIO("exists - operator syntax sample") {
using namespace rxcpp;
using namespace rxcpp::sources;
using namespace rxcpp::operators;
printf("//! [exists - operator syntax sample]\n");
auto values = range(1, 10)
| exists([](int n) { return n == 1; });
values.
subscribe(
[](bool v) { printf("OnNext: %s\n", v ? "true" : "false"); },
[]() { printf("OnCompleted\n"); });
printf("//! [exists - operator syntax sample]\n");
}