Re: What functions can be called on a shared struct that's implicitly castable to immutable?

[deadalnix]

On Sunday, 3 November 2013 at 21:55:22 UTC, Simen Kjærås wrote:

Consider:

module foo;

struct S {
    immutable(int)[] arr;
    void fuzz() const pure {
    }
}

void bar(S s) {
    s.fuzz();
}

void main() {
    shared S s;
    bar(s);   // a
    s.fuzz(); // b
}

In this case, the line marked 'a' works perfectly - it compiles and does what I'd expect it to.

However,the line marked 'b' does not compile - " non-shared const method foo.S.fuzz is not callable using a shared mutable object ".

It is because a imply a pass b value, when b a pass by reference.