Is it possible to have an “auto” member variable?

Question

For example I wanted to have a variable of type auto because I\'m not sure what type it will be.

When I try to declare it in class/struct declaration it

Answer 1

No. Each constructor could have its own initializer for start, so there could be no consistent type to use.

If you do have a usable expression, you can use that:

struct Timer {

   Foo getAFoo();

   delctype(Timer().getAFoo().Bar()) start;

   Timer() : start(getAFoo().Bar()) { /***/ }
};