1 #include "rxcpp/rx.hpp" 2 3 #include "rxcpp/rx-test.hpp" 4 #include "catch.hpp" 5 6 SCENARIO("exists sample") { 7 printf("//! [exists sample]\n"); __anon7fb2118f0102(int n) 8 auto values = rxcpp::observable<>::from(1, 2, 3, 4, 5).exists([](int n) { return n > 3; }); 9 values. 10 subscribe( __anon7fb2118f0202(bool v) 11 [](bool v) { printf("OnNext: %s\n", v ? "true" : "false"); }, __anon7fb2118f0302() 12 []() { printf("OnCompleted\n"); }); 13 printf("//! [exists sample]\n"); 14 } 15 16 SCENARIO("exists - operator syntax sample") { 17 using namespace rxcpp; 18 using namespace rxcpp::sources; 19 using namespace rxcpp::operators; 20 21 printf("//! [exists - operator syntax sample]\n"); 22 auto values = range(1, 10) __anon7fb2118f0402(int n) 23 | exists([](int n) { return n == 1; }); 24 values. 25 subscribe( __anon7fb2118f0502(bool v) 26 [](bool v) { printf("OnNext: %s\n", v ? "true" : "false"); }, __anon7fb2118f0602() 27 []() { printf("OnCompleted\n"); }); 28 printf("//! [exists - operator syntax sample]\n"); 29 }