What the operator `<

2018-06-13 22:02:55

This question already has an answer here:

What is the “-->” operator in C++? 21 answers

<-- is not an operator, it is < and -- written without space. Just to make it clear, I rewrite the code like this-

while(0 < --i)

First the value of i is decreased, and then compared if it is greater than 0 .