What is the exact meaning of 'nothrow'?

[ZombineDev via Digitalmars-d-learn]

On Thursday, 11 June 2015 at 00:32:45 UTC, ZombineDev wrote:
> Environment exceptions are stuff like user input and network 
> and file access. This are problems that you generally want to
... These* are ...
> handle and that's why they're considered recoverable.
>
> So 'Exception's propagate through function calls and 'Error's 
> terminate the program immediately.
>
> A function 'f' marked as "nothrow" indicates that no exceptions 
> shall escape from it (if a function that 'f' calls can throw, 
> 'f' must written, so that it catches the exception), but since
... catches *all possible exceptions*), ...
> 'Error's terminate the program immediately the callers of 'f' 
> should not care about them and that's why 'Error's don't brake
... don't break* ...