Why use a logger library and not just std::cout ?

• easyloggingpp

  2 3,678 5.4 C++

  C++ logging library. It is extremely powerful, extendable, light-weight, fast performing, thread and type safe and consists of many built-in features. It provides ability to write logs in your own customized format. It also provide support for logging your classes, third-party libraries, STL and third-party containers etc.

  

I am currently looking at a well written code base. I notice the author uses https://github.com/abumq/easyloggingpp to log messages. Why might they have done that rather than just use std::cout or std::ofstream? The software doesn't really have performance constraints (most of the time it's just sleeping) nor is it networked. What do logging libraries offer and when would I decide to use one?

• InfluxDB

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  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

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