I have written a simple function that can call another function
over integral types with random arguments:
auto rnd = Random(42);
auto rand_integral(T)() {
return uniform(T.min, T.max, rnd);
}
auto call_with_rand(alias fun)() {
fun(staticMap!(get_rand_integral, Parameters!fun));
}
Now I want to extend it so that a caller can specify the values
of only some of the parameters. I tried using a static foreach
instead of the staticMap function. But I can't modify AliasSeq
values.
alias args = AliasSeq!(0, 0);
static foreach (idx, val; args) {
static if (user_defined_function_exists_for_arg!(idx)) {
args[idx] = user_defined_function(); // cannot modify tuple
} else {
args[idx] = gen_rand_integral!(typeof(val)); // cannot modify
tuple
}
}
How do I build up an argument tuple at compile time where some
values are randomly generated and others are given through some
user defined function (most likely automatically discovered by a
naming convention)?
