Overview

Pass by ?

• Go is pass by value always!
• A few types have pointer fields under the hood
  • Eg.
    • slices
    • maps
    • channels

Pointers

• p := &<variable>

  • var p *<type>

• Print address using %p formatter

• * is used for dereferencing as well as defining a var as pointer

• & is used to get the address/reference of a variable

• new builtin function can initialize memory for any type

• No pointer arithmetic

  • You would have to use package unsafe

• unsafe is used heavily internally