string types: const(char)[] and cstring

[Walter Bright]

Daniel Keep wrote:
> One question though: are the parens necessary?  I was under the
> impression that const and invariant applied to reference types, so it
> would be const char[] or const(char[]), since char by itself is just a
> value type.

const(char)[] => array of const characters
const char[] => const array of const characters
const(char[]) => const array of const characters

Think of const as if it were a template:

	Const!(T)

which returns a const version of its argument.

const without any parens means it applies to the whole type.