[C] --> 오퍼레이터를 뭐라고 부르죠?

http://stackoverflow.com/questions/1642028/what-is-the-name-of-the-operator?rq=1

Q: --> 오퍼레이터를 뭐라고 부르죠?

아래와 같은 코드를 보았습니다. --> 오퍼레이터를 를 뭐라고 부르죠?

"while( x--> 0)"

(질문자: GManNickG)

A: 그거 오퍼레이터 아닙니다. 그냥 -- 연산을 한 뒤, 크기비교를 > 이 연산자로 한 것 뿐입니다.

(답변자: Potatoswatter)

What is the name of the “-->” operator?

up vote4694down votefavorite 1138

After reading Hidden Features and Dark Corners of C++/STL on comp.lang.c++.moderated, I was completely surprised that the following snippet compiled and worked in both Visual Studio 2008 and G++ 4.4. Here's the code: #include <stdio.h> int main() { int x = 10; while (x --> 0) // x goes to 0 { printf("%d ", x); } } I'd assume this is C, since it works in GCC as well. Where is this defined in the standard, and where has it come from? c++ c operators code-formatting standards-compliance shareeditflag edited Jun 18 at 23:45 community wiki 23 revs, 18 users 35% GManNickG

4596down voteaccepted +50

--> is not an operator. It is in fact two separate operators, -- and >. The conditional's code decrements x, while returning x's original (not decremented) value, and then compares the original value with 0 using the > operator. To better understand, the statement could be written as follows: while( (x--) > 0 ) shareeditflag edited Aug 6 at 10:22 community wiki 11 revs, 10 users 19% Potatoswatter