Hey guys,
could you help me understand the syntax of the isExpression?
I have an example, leaned on documentation
https://dlang.org/spec/expression.html#IsExpression
case 7.
// Code starts here //
import std.stdio, std.typecons;
alias Tup = Tuple!(int, string, bool);
enum myType {a, b, c}
struct E(T, myType ET, bool P) { T parts; }
void main()
{
auto r = E!(int, myType.a, true)();
fun(Tup.init);
writeln("-----");
fun(r);
}
void fun(T)(T t)
{
static if (is(T : TX!TL, alias TX, TL...))
{
writeln(is(TL[0] == int));
writeln(typeid(TL[1]));
writeln(typeid(TL[2]));
writeln(is(TL[2] == bool));
}
}
// Code ends here //
The question is: why during testing with Tup the last line gives
"true" and with the struct it is false? Especially, while the
line before is the same for both cases.
