I have the following code (on dpaste,
http://dpaste.dzfl.pl/636c04430a33):
enum : uint { a, b, c }
enum list = [a, b];
void foo(T...)()
{
pragma(msg, T[0].length); // fine
pragma(msg, T[0][0]); // fine
pragma(msg, T[0][1]); // fine
foreach(i; Iota!(0,T[0].length)) // fine
pragma(msg, T[0][i]);
//foreach(c; T[0]) // not fine
// pragma(msg, c);
}
template Iota(size_t i, size_t n)
{
import std.typetuple : TypeTuple;
static if (n == 0) alias TypeTuple!() Iota;
else alias TypeTuple!(i, Iota!(i + 1, n - 1)) Iota;
}
void main()
{
foo!list;
}
Just trying to pass a statically known array as a template
parameter. The foreach marked 'not fine' doesn't work, saying c
cannot be read at compile time, despite the length and all values
being known at compile time. The foreach above it uses a template
to generate a static tuple of indices, which are used to index
into the array, which works but seems unnecessary.
Is there a better way to do this?
