Re: More binary I/O problems

[Basile B. via Digitalmars-d-learn]

On Friday, 8 April 2016 at 20:58:06 UTC, Charles Hixson wrote:

[...]

And that worked, but suddenly (after a compiler upgrade, did that matter? I'd also changed the program, though in ways that shouldn't have affected this.) it stopped working with the message:

let4a.d(138): Error: no [] operator overload for type Chnk

[...]

you can cast too (void*)

struct Chnk
{
    char[20] wrd;
    ubyte  length;
    ulong  id;
    this (ulong id, string wrd) {}
    uint hCode () {return  0;}
    string toString () { return "";}
    string wrdStr() {return "";}
}

void main()
{
    import std.file: read, write;
    Chnk c;
    write("a.txt", (cast(void*)&c)[0..Chnk.sizeof]);
    auto buff = read("a.txt", Chnk.sizeof);
    (cast(void*)&c)[0..Chnk.sizeof] = buff[0..Chnk.sizeof];
}