How do I log something from UXP C++ addone?

How do I print logs from UXP C++ addon and where are they stored on Win and on Mac

Your addon is native code in the Photoshop process, so console.log isn’t available

The quickest and dirtiest solutions are to 1.) launch Photoshop from a terminal and fprintf(stderr, ...)or 2.) append to a file, writing to an absolute path that’s writable like /tmp