Have you heard about "down-to" operator?

Question

Let's make it interesting!
Suppose you're given a program to print all numbers from m to n. Easy, isn't it?

Check out the following code which uses the "down-to" operator for this purpose:

https://code.sololearn.com/c9iEFTCXyooP/#cpp

But, there is something "irony" in this "down-to" operator...
Can you resolve it?

Answer 1

(a --> 1) means
((a--) > 1)

LOL!

Answer 2

Hey @C++ Soldier (Babak) Nice!

You found the "irony" ;)

Answer 3

@rv7 I thought you were using mobile app too, it's fine though, still waiting for the next prank :D

Answer 4

I had no idea that existed,New trick acquired...thanks for uploading

Answer 5

@Sai welcome! Even I myself had no idea.
Actually, it's not just in C++ only, it's also in Java, JS and other popular languages, EXCEPT Python...

Can you guess why?

Answer 6

😀Good joke. The irony is this "operator" actually down-to to 0, not 1

Answer 7

@Sai Actually the "-->" thing isn't actually an operator.
It's a combo of "--" and ">".

Line 8th in my code can be illustrated as:

} while ( (a--) > 1 );

And, the loop will runs until a equals 1, i.e., "a goes to 1" ;)
This is the reason why there is no docs on this operator in any language. LOL!

Answer 8

@KrOW how about x ++< 10, "upto" operator?

Answer 9

rv7 This is less funny 😀😀😀

Answer 10

I'll be waiting for your next prank, but please, next time do it right in a feed post ... LOL, nice one ... XD

Answer 11

Nice meta-operator 😁😁😁😁

Answer 12

@Ipang Thanks! And you're right about the feeds, and I believe you can understand the condition of www.sololearn.com. No feed to feed ;)

Answer 13

@Ipang Glad to know that. Cheers!

Answer 14

I can't say,care to enlighten me rv7

Answer 15

I am heard downto() function in kotlin for loop

for ( a in 10.downTo(1))

I think this is vaid

then the look will
the Ranges 10 ..1