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async: Start Policy

Explore how to explicitly define whether asynchronous tasks run immediately or deferred using std::launch::async and std::launch::deferred. Understand eager and lazy evaluation strategies to manage task execution timing in modern C++ concurrency programming.

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With the start policy you can explicitly specify whether the asynchronous call should be executed in the same thread (std::launch::deferred) or in another thread (std::launch::async).

Eager versus lazy evaluation

Eager and lazy evaluations are two orthogonal strategies to calculate the result of an expression. In the case ...