Passing Arguments to Threads
This lesson gives an overview of how to pass arguments to threads in C++ -- by copy and by reference.
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A thread, like any arbitrary function, can get its arguments by copy, by move, or by reference. std::thread is a variadic template which means that it takes an arbitrary number of arguments.
In the case where your thread gets its data by reference, you have to be extremely careful about the lifetime of the arguments; not doing so may result in undefined behavior.
Copy or Reference
Let’s have a look at a small code snippet:
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