On 15.01.2016 21:42, Nordlöw wrote:
How do I index a function parameter tuple with a run-time index?
With a switch and a static foreach: ---- void f(A...)(size_t i, A a) { import std.stdio: writeln; switch_: switch (i) { foreach (iT, T; A) { case iT: writeln(T.stringof); break switch_; } default: writeln("??"); break; } } void main() { f(0, "foo", 42); /* string */ f(1, "foo", 42); /* int */ f(2, "foo", 42); /* ?? */ } ----