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while_loop.cpp
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37 lines (27 loc) · 790 Bytes
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// This program demonstrates how to implement while-loop control flow
// using condition tasks.
#include <taskflow/taskflow.hpp>
int main() {
tf::Executor executor;
tf::Taskflow taskflow;
int i;
auto [init, cond, body, back, done] = taskflow.emplace(
[&](){ std::cout << "i=0\n"; i=0; },
[&](){ std::cout << "while i<5\n"; return i < 5 ? 0 : 1; },
[&](){ std::cout << "i++=" << i++ << '\n'; },
[&](){ std::cout << "back\n"; return 0; },
[&](){ std::cout << "done\n"; }
);
init.name("init");
cond.name("while i<5");
body.name("i++");
back.name("back");
done.name("done");
init.precede(cond);
cond.precede(body, done);
body.precede(back);
back.precede(cond);
taskflow.dump(std::cout);
executor.run(taskflow).wait();
return 0;
}