What is the corect behavour for lazy in foreach variadic template
Artur Skawina via Digitalmars-d-learn
digitalmars-d-learn at puremagic.com
Fri Sep 25 09:38:25 PDT 2015
On 09/25/15 17:47, Ali Çehreli via Digitalmars-d-learn wrote:
> Perhaps we need an enhancement that either works in your original code [...]
His original code does work (`foreach` evaluates `args[N]` and
assigns the result to `arg`).
If he wanted to delay the evaluation, he would have written it
like this:
void test(T...)(lazy T args)
{
foreach(I, _; typeof(args))
{
writeln("about to process arg");
writefln("processing arg %s",args[I]);
}
}
artur
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