Why don't other programming languages have ranges?

[Walter Bright]

Michel Fortin wrote:
> On 2010-07-26 14:42:54 -0400, Walter Bright <newshound2 at digitalmars.com> 
> said:
> 
>> 1. segfaults *are* exceptions.
> 
> At the processor level, yes. They're exceptions at the language level 
> only on Windows, which I'd consider 'implementation defined', so not 
> exceptions as far as the language is concerned.

They are exceptions in the sense that a condition required by the program has 
been violated.


>> 2. D offers a memory safe subset, and D's ranges and algorithms are 
>> memory safe.
> 
> That's more a wish than reality though. I have yet to see @safe applied 
> on ranges and algorithms. I'm pretty sure it'll require a couple of 
> adjustments to @safe. As it exists currently, @safe does not work very 
> well with templates and delegate literals.

While it's true that @safe hasn't been thoroughly debugged yet, the ranges and 
algorithms are still memory safe because they use the array paradigm rather than 
the unchecked pointer paradigm.