pointer syntax (C++)
 

I've seen all three uses:

type * pointer
type *pointer
type* pointer

Are these 3 forms essentially the same, i.e., is the spacing as used here a non-factor when declaring pointers?

Whitespaces do not matter in C/C++ - except in string.

Whitespace doesn't matter in type*pointer.

But obviously there are places in C++ outside of strings where whitespace does matter. For example, whitespace is not valid in a digraph, and in obscure cases whitespace is required to prevent two operators from being a digraph. The following code is wrong due to lack of required whitespace: