A small const problem

[Peter Alexander]

On Friday, 16 March 2012 at 01:43:41 UTC, bearophile wrote:
> So in a way here I am looking for a const that makes the struct
> fields not mutable, but allows me to rebind the whole structs.

But that would make the fields mutable:

struct Foo
{
     Foo(int _a, int _b, int _c) { a = _a; b = _b; c = _c; }
     int a;
     int b;
     your_const(int) c;
}

Foo f = Foo(1, 2, 3);
f.c = 4; // illegal - good.

but...

f = Foo(f.a, f.b, 4); // ok? But it's the same thing.