AMDG Vladimir Batov wrote:
My interpretation of the code above that it is a declaration of "_value" as a reference. Then, I call the same thing twice as below:
convert<string, int>(str, _value = -1); convert<string, int>(str, _value = -2);
Does not the *same* _value reference is used in *both* calls? I.e. after the first call "_value" references -1 and after the second call it references -2. If so, then, when two calls above called from different threads we might have a problem, isn't it? If it is not the case, I am really curious how you, guys, did that, it is surely looks magic. Any pointers, additional docs, anything?
Assignment is overloaded to return an argument pack rather than storing the value in a global location. Everything you need is encoded in the return type of _value = -1. the actual object _value is stateless. In Christ, Steven Watanabe