// This example demonstrates how to attach data to a task and run
// the task iteratively with changing data.

#include <taskflow/taskflow.hpp>

int main(){

 tf::Executor executor;
 tf::Taskflow taskflow("attach data to a task");

 int data;

 // create a task and attach it the data
 auto A = taskflow.placeholder();
 A.data(&data).work([A](){
 auto d = *static_cast<int*>(A.data());
 std::cout << "data is " << d << std::endl;
 });

 // run the taskflow iteratively with changing data
 for(data = 0; data<10; data++){
 executor.run(taskflow).wait();
 }

 return 0;
}