Re: Is there something like "apply"?

[Ali Çehreli via Digitalmars-d-learn]

On 04/28/2015 10:48 AM, Robert M. Münch wrote:

Hi, I have the following "problem": I have the parameters for a function
in an array. Now I want to call a function with a specific arity and use
the parameters from the array to call it.

Like this pseudo-code:

args = [10, 20];

def foo(a, b): return a + b;

print(foo(*args));

Is something like this possible in D?

import std.stdio;
import std.typetuple;

void foo(int i, string s, double d)
{
    writefln("foo: %s %s %s", i, s, d);
}

void main()
{
    auto args = TypeTuple!(42, "hello", 1.5);
    ++args[0];
    args[1] ~= " world";
    args[2] *= 3;
    foo(args);
}

Ali