On Tuesday, 10 August 2021 at 12:01:24 UTC, Dennis wrote:
```D
struct Vec {
float x, y, z;
}
void setPosition(float x, float y, float z) {
}
void main() {
Vec posS = Vec(10, 20, 30);
setPosition(posS.tupleof); // pass
float[3] posA = [10, 20, 30];
setPosition(posA.tupleof); // Error: no property `tupleof`
for type `float[3]`
}
```
Does anyone know a library utility to make expanding a static
array like this work?
I came up with
```d
auto structOf(T, size_t N)(T[N] xs) {
string defstruct(size_t n) {
import std.conv : to;
string m = "struct S { " ~ T.stringof;
foreach (i; 1 .. n) {
m ~= " _";
m ~= i.to!string;
m ~= ",";
}
m ~= " _n; }";
return m;
}
mixin(defstruct(N));
return cast(S) xs;
}
```
for `structOf(posA).tupleof`
And I don't see very many static-array-generic functions in
Phobos.
