On 05/04/2012 10:51 AM, Iain wrote:
If you want Iain I'll put this version by Ali Çehreli in Rosettacode:
import std.stdio, core.thread;
void main() {
write("Enter a time to sleep (in seconds): ");
long secs;
readf(" %d", &secs);
writeln("Sleeping...");
Thread.sleep(dur!"seconds"(secs));
writeln("Awake!");
}
Bye,
bearophile
That's great, and thanks to Ali for explaining.
Out of interest, is there a coordinated effort to update things like
Rosetta or the dsource.org tutorials to use D2.0? I find one of the big
stumbling blocks to learning is that half of the tutorials and code
snippets out there are obsolete!
As far as I know, people maintain sites individually.
It is unfortunate but not surprising that many sites have been outdated
considering the amount of changes to D in the recent years. I had to
rewrite a number of chapters and go over many examples since I have
started the original book a number of years ago. (See my shiny new
signature. ;))
Somewhat off-topic, I have just hit a broken example today when
translating the "null and is" chapter. This used to print 0:
writeln(null);
but now causes an obscure compilation error:
.../dmd/phobos/std/stdio.d(1562): Error: undefined identifier 'length'
.../dmd/phobos/std/stdio.d(1562): Error: undefined identifier 'ptr', did
you mean 'template tr(C1,C2,C3,C4 = immutable(char))'?
deneme.d(76953): Error: template instance
std.stdio.writeln!(typeof(null)) error instantiating
It takes the 'null' value to be a "Specialization for strings - a very
frequent case".
This is a bug, right? But what should printing 'null' do anyway? Print 0
as before, or "null"?
Ali
--
D Programming Language Tutorial: http://ddili.org/ders/d.en/index.html
