Delayed const variable initialization

[ketmar via Digitalmars-d-learn]

On Mon, 13 Jul 2015 07:11:32 +0000, Yuxuan Shui wrote:

> How can I do something like this?
> 
> const(A) x;
> if (condition) {
>    x = func1();
> } else {
>    x = func2();
> }
> 
> This is a valid use case, and to make this work I'll have to use
> Rebindable, which is really inconvenient.

p.s. also, this is not "initialization", but "assignment". `x` is 
initialized to default value here, and then compiler will not allow 
assignments. unlike c/c++, in D variables are always initialized.
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