70 lines
1.7 KiB
C++
70 lines
1.7 KiB
C++
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#include "rxcpp/rx.hpp"
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// create alias' to simplify code
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// these are owned by the user so that
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// conflicts can be managed by the user.
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namespace rx=rxcpp;
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namespace rxu=rxcpp::util;
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#include<string>
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// At this time, RxCpp will fail to compile if the contents
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// of the std namespace are merged into the global namespace
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// DO NOT USE: 'using namespace std;'
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#if 0
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//
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// println will insert values into the specified stream
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//
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template<class OStream>
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struct println_function
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{
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OStream& os;
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println_function(OStream& os) : os(os) {}
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template<class... TN>
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void operator()(const TN&... tn) const {
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bool inserts[] = {(os << tn, true)...};
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os << std::endl;
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}
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template<class... TN>
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void operator()(const std::tuple<TN...>& tpl) const {
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apply(tpl, *this);
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}
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};
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template<class OStream>
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auto println(OStream& os)
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-> println_function<OStream> {
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return println_function<OStream>(os);
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}
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#endif
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#ifdef UNICODE
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int wmain()
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#else
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int main()
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#endif
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{
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auto get_names = [](){return rx::observable<>::from<std::string>(
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"Matthew",
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"Aaron"
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);};
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std::cout << "===== println stream of std::string =====" << std::endl;
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auto hello_str = [&](){return get_names().map([](std::string n){
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return "Hello, " + n + "!";
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}).as_dynamic();};
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hello_str().subscribe(rxu::println(std::cout));
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std::cout << "===== println stream of std::tuple =====" << std::endl;
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auto hello_tpl = [&](){return get_names().map([](std::string n){
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return std::make_tuple("Hello, ", n, "! (", n.size(), ")");
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}).as_dynamic();};
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hello_tpl().subscribe(rxu::println(std::cout));
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hello_tpl().subscribe(rxu::print_followed_by(std::cout, " and "), rxu::endline(std::cout));
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return 0;
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}
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