Re: Dual conditions in D and Python

[Alex Parrill via Digitalmars-d-learn]

On Thursday, 21 May 2015 at 16:57:16 UTC, Dennis Ritchie wrote:

Hi,
In Python I can write this:

if (4 <= 5 <= 6):
    print ("OK")
-----
http://rextester.com/NNAM70713

In D, I can only write this:

import std.stdio;

void main() {

    if (4 <= 5 && 5 <= 6)
        puts("OK");
}
-----
http://rextester.com/FICP83173

I wanted to ask what is the reason? Maybe the program on Python's slower because of this? Or legacy C/C++ affected D?

http://wiki.dlang.org/Language_Designs_Explained#Why_does_D_not_support_chaining_comparison_operators.3F