c++loggingglog

Change logging directory in Google glog

How can I change the output directory in Google glog?

I only found google::SetLogDestination(google::LogSeverity, const char* path)

tried it with:

google::SetLogDestination(ERROR, "C:\\log\\error.log");
google::InitGoogleLogging("Test");  

LOG(ERROR) << "TEST";

but nothing was written!

Btw.: if you suggest another lightweight, easy-to-use, and thread-safe library please let me know!

Solution

  • You can also do one of the following:

    Pass the log directory as a commandline argument as long as you have the GFlgas library installed:

    ./your_application --log_dir=/some/log/directory

    If you don't want to pass it in the commandline and instead set it in the source:

    FLAGS_log_dir = "/some/log/directory";

    If the Google gflags library isn't installed you can set it as an environment variable:

    GLOG_log_dir=/some/log/directory ./your_application