• Jesse Phillips (14/21) Nov 01 2010 Since when?
• bearophile (4/5) Nov 01 2010 You are right, what I have said doesn't apply to map/filter. Sorry for m...

Jesse Phillips <jessekphillips+D gmail.com> writes:

bearophile Wrote:

 Simen kjaeraas:
 
 They take both, in fact:
 
 auto cubes = map!((a){ return a*a*a; })(arr);

 
 But that needs to be compile-time constant, so if you have several functions,
you need to put them inside a typetuple, or duplicate the code. And some idioms
are just not possible.

Since when?

import std.stdio: writeln;
import std.algorithm : map, iota;
import std.conv : to;

void main() {
	int squareDel(int a) { return a*a; }
	int cubeDel(int a) { return a*a*a; }
	int funny(int a) { return (a+1+a*2)/a; }

	auto delarr = [&squareDel, &cubeDel, &funny];
	auto arr = iota(1, 10);

	foreach(del; delarr)
		writeln(map!(del)(arr));

}

bearophile <bearophileHUGS lycos.com> writes:

Jesse Phillips:

 Since when?

You are right, what I have said doesn't apply to map/filter. Sorry for my silly
mistake.

Bye,
bearophile