Question 1

How do I set up Plog to log to both a file and the console?

Accepted Answer

Use multiple appenders by initializing with one appender (e.g., RollingFileAppender) and then calling addAppender to add another (e.g., ConsoleAppender), as demonstrated in the Multiple Appenders sample. This routes logs to both destinations simultaneously.

Question 2

Plog vs spdlog: which C++ logging library is better for my project?

Accepted Answer

Plog excels in minimalism and no dependencies, ideal for embedded or cross-platform projects. spdlog offers asynchronous logging and more built-in features, making it better for high-performance applications where non-blocking logs are critical.

Question 3

How can I format logs in JSON with Plog?

Accepted Answer

Plog doesn't include a JSON formatter out of the box. You need to create a custom formatter by implementing the header and format methods, as explained in the Extending section under custom formatter.

Question 4

Does Plog support asynchronous logging for better performance?

Accepted Answer

No, Plog uses synchronous logging by design, which can slow down applications with high log volumes. The README notes this limitation and suggests it's acceptable for most use cases but not for high-throughput scenarios.

Question 5

How to disable logging in release builds to reduce binary size?

Accepted Answer

Define the PLOG_DISABLE_LOGGING macro before including Plog headers. This strips all logging code from the binary, as mentioned in the Disable Logging section, helping minimize footprint.

Question 6

Can I change log severity levels at runtime with Plog?

Accepted Answer

Yes, use plog::get()->setMaxSeverity(severity) to dynamically adjust the maximum severity, allowing on-the-fly control without restarting the application, as detailed in the Changing Severity at Runtime section.

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