Ascertaining!

[Salih Dincer via Digitalmars-d-learn]

Hi All,

I didn't know compiling was bottom-up. This example proves that. 
Because in single-line expressions, it takes value from the 
right, firstly.

```d
void main()
{
    int n;         // true (n == 0)
    int i = 1;     // true (i == 1)
    int j = i = n; // all numbers are 0

    n =
    i =
    j =

    1;              // all numbers are 1

    // ascertaining: n = i = j = 1;

    assert(j);
    assert(i);
    assert(n);
}
```
SDB@879