ehonnef / logger-cpp

Logger

Simple logger class that uses std::format library.

This logger uses the new C++20 std::format.

Usage

• Include the folder code/include in your project and include the header Logger/Logger.hpp
• Set the Log level by simply defining: using Logger = eho::CLogger<eho::LogLevel::Warning>.
• Then simply use as Logger::Error("the message with {} formatting", "some").
  • You can enable/disable a specific log by using as Logger::Error<false>("the message with {} formatting", "some"). As default the template parameter is true.

Available levels:

• Trace
• Debug
• Info
• Warning
• Error
• Fatal

Check the main.cpp file for more usage example.

Changing the formatting

You need to provide a class with the following function signature:

template<LogLevel t_eLogLevel, typename... Args>
void Print(std::string_view strMessage, const std::source_location location, const Args &...args) {
    // Do your formatting + output here
}

This function will be called for the output and also, format the string inside that function, just change it as it suits you (file output, terminal output, etc).

Then update the line as follows: using Logger = eho::CLogger<eho::LogLevel::Warning, MyCustomFormatter>.

TODO

• Logging server
• Log to a file

License

Under Mozilla Public License, v. 2.0. Check License file.