From 483eb2f56657e8e7f419ab1a4fab8dce9ade8609 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 20:24:20 +0200 Subject: Adding upstream version 14.2.21. Signed-off-by: Daniel Baumann --- src/boost/libs/fiber/examples/future.cpp | 50 ++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 src/boost/libs/fiber/examples/future.cpp (limited to 'src/boost/libs/fiber/examples/future.cpp') diff --git a/src/boost/libs/fiber/examples/future.cpp b/src/boost/libs/fiber/examples/future.cpp new file mode 100644 index 00000000..cc7c6b0f --- /dev/null +++ b/src/boost/libs/fiber/examples/future.cpp @@ -0,0 +1,50 @@ + +// Copyright Oliver Kowalke 2013. +// Distributed under the Boost Software License, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at +// http://www.boost.org/LICENSE_1_0.txt) + +#include +#include +#include +#include +#include + +#include + +inline +int fn( std::string const& str, int n) +{ + for ( int i = 0; i < n; ++i) + { + std::cout << i << ": " << str << std::endl; + boost::this_fiber::yield(); + } + + return n; +} + +void start() +{ + boost::fibers::future< int > fi( + boost::fibers::async( + std::bind( fn, "abc", 5) ) ); + fi.wait(); + std::cout << "fn() returned " << fi.get() << std::endl; +} + +int main() +{ + try + { + boost::fibers::fiber( start).join(); + std::cout << "done." << std::endl; + + return EXIT_SUCCESS; + } + catch ( std::exception const& e) + { std::cerr << "exception: " << e.what() << std::endl; } + catch (...) + { std::cerr << "unhandled exception" << std::endl; } + return EXIT_FAILURE; +} -- cgit v1.2.3