On Tuesday, 5 February 2013 at 21:14:32 UTC, Nick Treleaven wrote:
On 05/02/2013 21:13, Nick Treleaven wrote:
I've just tried it with dmd 2.059 (haven't upgraded yet)
sorry, 2.060
Right, it's "alias" being finicky, because "args.length" isn't an
actual variable (it's a property). The problem is not so much
that it can't be "read" at compile time, that the compiler
doesn't know what to alias to.
I'll file a bug report to try and see if we can't get a better
message.
Use a named variable, or use a manifest constant:
//----
import std.stdio;
import core.stdc.stdlib:alloca;
T* stack(T)(void* m = alloca(T.sizeof))
{
return cast(T*)m;
}
T[] stack(T, alias N)(void* m = alloca(T.sizeof * N))
{
return (cast(T*)m)[0 .. N];
}
void main(string[] args)
{
auto n = args.length;
int[] arr = stack!(int, n)();
}
//----
