A debug class has started

[H. S. Teoh]

On Mon, Dec 13, 2021 at 10:43:14PM +0000, forkit via Digitalmars-d-learn wrote:
> On Monday, 13 December 2021 at 21:13:25 UTC, H. S. Teoh wrote:
> > 
> > What you should be doing is:
> > 
> > 	return to!string(str[0 .. len]);
> > 
> > Or just:
> > 
> > 	return str[0 .. len].idup;
[...]
> oh.. so many different ways...(to both produce the same bug, and also
> to produce the correct output).
> 
> ... it's a little mind boggling ;-)
[...]

It's very simple.  In C, an array decays to a pure pointer.  In D, an
array is a pointer + length pair.  Given a D array, if you want a
pointer to its first element, you use .ptr.   Given a D pointer, if you
want an array, you slice it with [0 .. length].

That's all there is to it.


T

-- 
Almost all proofs have bugs, but almost all theorems are true. -- Paul Pedersen