Adam questions

• Why does a &str not have a "does not live long enough" issue when returned from a function? [duplicate]
• Pass by reference vs. Pass by shared_ptr
• How does the lifetime work on constant strings / string literals?
• How to retrieve the current script's path in Fish shell
• Is there any good color map to convert gray-scale image to colorful ones using python's PIL? [duplicate]
• How does "extern C++" work?

Adam answers