On 09/04/2014 04:03 PM, "Nordlöw" wrote:
> Are there any programming languages that extend the behaviour of comparison
> operators to allow expressions such as
>
> if (low < value < high)
>
> ?
>
> This syntax is currently disallowed by DMD.
>
> I'm aware of the risk of a programmer misinterpreting this as
>
> if ((low < value) < high)
>
> Is this the reason why no languages (including D allows it).
>
> I'm asking for in some cases, where value is a long expression, it would be a
> nice syntatic sugar to use.
Python has this as well:
```
def foo():
print "Called foo"
return 10
if 0 <= foo() <= 50:
print "Success!"
```
I agree that it would be convenient, though I think that this would cause less
breakage:
```
if(x in 0..50) {}
```
--
Matt Soucy
http://msoucy.me/
