3 variant questions

[Saaa]

>
> import std.stdarg;
>
> assert( _arguments[0] is typeid(int*) );
> auto arg = va_arg!(int*)(_argptr);
> *arg = 10;
>
> Probably.
>
>  -- Daniel

Calling the following returns an Access Violation Error after
correctly writing the two lines.

void main()
{
int i;
get( file, `i`, i);
}

public void get(in char[][] file, in char[] identifier, ...)
{
assert( _arguments[0] is typeid(int) );
writefln(`assert done`);
auto arg = va_arg!(int*)(_argptr);
writefln(`assign done`);
*arg = 7;
return;
}