Array Slice Ranges

[BCS]

Nikita Kalaganov wrote:
>>Wouldn't that be -1? But the point stands.
> 
> 
> Ah, yes of course.
> 
> 
>>Also how do you get a 0 length slice with inclusive?
>>exclusive
>>data[0..0].length == 0;
>>inclusive
>>data[0..0].length == 1;
> 
> 
> Hmm, why it's so important ?

int[] a, b, c;
a = ...
b = ...


// insert before i
int i = ...;

	// exclusive slices
c = a[0..i] ~ b ~ a[i..$];

//vs.

	// inclusive slices
if(i==0)
	c = b ~ a;
else if(i == a.length)
	c = a ~ b;
else
	c = a[0..i-1] ~ b ~ a[i..$];

having the identity a == a[0..i]~a[i..$] is nice.