pre-increment

Is there a performance difference between i++ and ++i in C?

Is there a performance difference between i++ and ++i if the resulting value is not used? ...

Is there a performance difference between i++ and ++i in C++?

We looked at this answer for C in this question: http://stackoverflow.com/questions/24886/is-there-a-performance-difference-between-i-and-i-in-c What's the answer for C++? ...

Difference between i++ and ++i in a loop?

Is there a difference in ++i and i++ in a for loop? Is it simply a syntax thing? ...

What is more efficient i++ or ++i?

Exact Duplicate: Is there a performance difference between i++ and ++i in C++? Exact Duplicate: Why should I use ++i? Exact Duplicate: Difference between i++ and ++i in a loop? What is more efficient i++ or ++i? I have only used this in Java and C/C++, but I am really asking for all languages that this is implemented in. In colleg...

Why can't I do ++i++ in C-like languages?

Half jokingly half serious: why can't I do ++i++ in C-like languages, specifically in C#? I'd expect it to increment the value, use that in my expression, then increment again. ...

Incrementing in C++ - When to use x++ or ++x?

Hello, I'm currently learning C++ and I've learned about the incrementation a while ago. I know that you can use "++x" to make the incrementation before and "x++" to do it after. Still, I really don't know when to use which... I've never really used "++x" and things always worked fine so far, but when should I use it? Exemple : In a fo...

explain working of post and pre increment operator in Java

can you explain me the output of this in case of Java int a=5,i; i=++a + ++a + a++; i=a++ + ++a + ++a; a=++a + ++a + a++; System.out.println(a); System.out.println(i); The output is 20 in both cases ...

whether a language needs preIncrement (++x) and postIncrement (x++)

i have never seen the usecase for preincrement and postincrement in actual code. The only place i see them most often are puzzles. My opinion is, it introduces more confusion rather than being useful. is there any real use case scenario for this can't this can be done by using += y = x++ y = x x += 1 ...

Does implementation of ++i vs. i++ vary from language to language?

I recently read: "The expressions (++i) and (i++) have values and side effects. The side effect is that the value in i is increased by 1. The value of (i++) is the value before the increment and the value of (++i) is the value after the increment, but whether the increment or the evaluation takes place first, is not part of C." I know t...

Multiple preincrement operations on a variable in C++(C ?)

Why does the following compile in C++? int phew = 53; ++++++++++phew ; The same code fails in C, why? ...

Difference between i = ++i and ++i

Possible Duplicate: Could anyone explain these undefined behaviors (i = i++ + ++i , i = i++, etc) What is the difference between i = ++i; and ++i; where i is an integer with value 10? According to me both do the same job of incrementing i i.e after completion of both the expressions i =11. ...

C# difference between arr[0]++ and ++arr[0]

In C#, is there a difference between the code (all in one statement, not part of a larger one) arr[0]++; and ++arr[0]; I fully understand, that in C / C++ / Objective-C, that this would not do the same thing, first case would get the value at arr's 0th index and increment that value by one, while the second one, increases the pointer va...