int nan

[BCS]

Hello Nick,

> Interesting idea, but IMO using NaN as a default initializer is just a
> crutch for not having a real system of compile-time
> detecting/preventing of uninitialized variables from being read (C#'s
> system for this works very well in my experience).

I think you can prove that it is impossible to do this totally correctly:

int i;

for(int j = foo(); j > 0; j--) i = bar(j);   // what if foo() returns -5?