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Refactoring with C++
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One of the best examples of how C++’s type system can be leveraged to write more robust code is the <chrono>
library. Introduced in C++11, this header provides a set of utilities to represent time durations and points in time, as well as perform time-related operations.
Managing time-related functions using plain integers or structures such as timespec
can be a bug-prone approach, especially when dealing with different units of time. Imagine a function that takes an integer representing a timeout in seconds:
void wait_for_data(int timeout_seconds) { sleep(timeout_seconds); // Sleeps for timeout_seconds seconds }
This approach lacks flexibility and can lead to confusion when handling various time units. For example, if a caller mistakenly passes milliseconds instead of seconds, it can cause unexpected behavior.
By contrast, using <chrono>
to define the same function makes the code more robust and...