Check if tuple contains value at compile time

[bearophile]

Diggory:

> The documentation seems too say that "[mytuple]" will make an 
> array,

Nope. You have to extract the inherent typetuple first. And this 
is what the [] syntax does (tested):


import std.stdio, std.typecons, std.algorithm;
void main() {
     auto t = tuple("foo", "bar", "spam");
     assert([t[]].canFind("bar"));
}

Bye,
bearophile