Hi

This might be a really silly question:
For a list of statements why is the declaration
BUF(Stmt **stmts) rather than BUF(Stmt *stmts) ?

If you have "int" type and want to have an array of ints then you do "int *" (add an asterix) to point to first element of array
If statement is "Stmt *" type, then to have an array of statements you add an asterix and get "Stmt **". This means you can point to first element of array with "Stmt *" elements - each array element is pointer itself.

means is pointer to and/or array of elements

Got it guys, thanks for the reply.