On Wednesday, 5 January 2022 at 04:35:12 UTC, Tejas wrote:
```d
import std.stdio:writeln;
ref int func(return ref int a){
a = 6; // modifies a as expected
return a;
}
void main(){
int a = 5;
auto c = func(a); // I expected c to alias a here
c = 10; // Expected to modify a as well
writeln(a); // prints 6 :(
}
```
Local variables cannot be references, so when you assign the
reference returned from `func` to the variable `auto c`, a copy
is created.
To make this work the way you want it to, you must use a pointer:
```d
int a = 5;
auto p = &func(a); // use & to get a pointer
*p = 10;
writeln(a); // prints 10
```