Search DaniWeb - post-increment

Understanding which is faster pre or post increment operator (++i or i++) ? 15 Years Ago by tajendra … say that pre-increment is faster then post-increment operator. If we talk about independent statement containing just pre-increment and post-increment operator then pre…-increment is faster (without compiler optmization).but, if we… pre and post increment 15 Years Ago by chuppy … me more examples and detailed explanation...very confused on the post increment part..thanks a million... * struggling here..revising for my java… Re: Post Increment Problem. 11 Years Ago by Rahul47 You were right. I never heard of Sequence Points before. But, dosen't post increment supposed to hold its concept for every kind of compiler ? Re: Post Increment Problem. 11 Years Ago by deceptikon > But, dosen't post increment supposed to hold its concept for every kind of compiler ? … Re: increment (++) fails 11 Years Ago by stultuske … have been (seeing he teaches it). The increment works perfectly fine, but, it is a post-increment, and, since he is a Java… teacher, he should know that a pre-increment and a post-increment do not work in the exact same way. Re: increment (++) fails 11 Years Ago by sepp2k …x++` as "do something with `x` and then increment `x` afterwards") and I do agree that some … and C++ (and every other langauge that has the post-increment operator). Defining it differently than those languages (by actually…saying something like "do something with `x` and then increment `x` afterwards"¹ in the spec, for example) … Re: Increment Counter ++ 14 Years Ago by CsharpChico [Post Removed] Re: pre and post increment 15 Years Ago by javaAddict Read the comments [CODE] int m [] = { 3, 2, 5, 2 }; int k = 0; // k has value 0 so it returns 3. THEN k is increased because the ++ is after the variable System.out.println("(a)" + m[ k++ ]; // k has now value 1 // ++k. The ++ is before the variable so the increase will happen FIRST. So k will become 2. THEN k will "return"… Re: pre and post increment 15 Years Ago by chuppy thanks for the explanation...i'll go figure it out. Re: pre and post increment 15 Years Ago by chuppy one more qn.. what is the difference between System.out.println("(a)" + (1 + m[k]) ); and System.out.println("(a)" + 1 + m[k] ) ; i realised that the output is different..it's 3 and 12 respectively... what difference does it make because of the additional bracket?? Re: pre and post increment 15 Years Ago by javaAddict [CODE] First it will calculate what is inside the parenthesis and return it. Then it will concatenate it with the rest: System.out.println("(a)" + [B][COLOR="Green"]([/COLOR][/B]1 + m[k][B][COLOR="Green"])[/COLOR][/B] ); // "(a)" + (1 + m[k]) --> "(a)" + [COLOR="Green"](1+2)[/COLOR] … Re: Increment a number in an array 18 Years Ago by Ancient Dragon post the error message. and more of the code Re: Quick Question! Post/pre Inc! 17 Years Ago by warpstar … same for a "For Loop"??, the increment expression, if its pre/post wouldnt it be the same since its being…' be any different No they are the same. pre and post increment only has any real difference if used in an expression… Re: Quick Question! Post/pre Inc! 17 Years Ago by Ancient Dragon …' be any different No they are the same. pre and post increment only has any real difference if used in an expression… Re: Pointer Increment 14 Years Ago by MarioJC … v = *p++[/CODE] p gets dereferenced first and then incremented (post-increment). So after the assignment the value of v will be…[/CODE] here p first gets incremented and then dereferenced (pre-increment). So after the assignment the value of v will be… Re: Pre / Post Increment Explanation 13 Years Ago by PrimePackster [QUOTE=Narue;1739421][URL="http://en.wikipedia.org/wiki/Undefined_behavior"]Undefined behavior[/URL].[/QUOTE] But how could, simple increment & decrement operations invoke an undefined behavior? Just curious to know... Re: Pre / Post Increment Explanation 13 Years Ago by deceptikon … break up the expression to do it. In the first post on this thread, the first code snippet has undefined behavior… Re: Int post-increment help 13 Years Ago by pattmorter I neve thought about thinking `a -= a;` in that manor but that would make sense. Thanks a lot. I just need to remember that `* / %` comes before `+` and `-`. Your post was extreamly helpful. Thank you a lot. Re: Int post-increment help 13 Years Ago by VernonDozier > Your post was extreamly helpful. Thank you a lot. You're welcome. &… Re: increment (++) fails 11 Years Ago by stultuske ….. but, then again, your initial post contained wrong information. "which fails to increment" ... no, it doesn't… fail to increment, it just increments after the…correct information, and not the "which fails to increment", "it should return 1", ... … Re: increment date by week 17 Years Ago by Walkere …the example script (at the bottom of this post). It starts with a beginning date - …, - Walkere [code]<?php $increment = 1; // # of weeks to increment by // First day of the first…array(); for ($week = 0; $week <= 52; $week += $increment) { $week_data = array(); $week_data['start'] = strtotime("+$week weeks"… Re: increment in php 14 Years Ago by rch1231 It depends on what you mean by increment the table row. If you are referring to incrementing it … simply create the field as an auto-increment in MySQL and the database will auto-increment the field for you. If you… are simply trying to get to the next record in the table then post… Re: Increment filenumber with date 17 Years Ago by Ancient Dragon … see that I forgot to increment the counter, so I just now added that to my post above. How are you formatting… increment a number by x every x seconds no refresh 18 Years Ago by greenphpcoder hi i was set the task to increment a number by x every x seconds and i tried … the subject covered very sparsley so for whoevers benefit ill post the code here hope it helps [URL]http://www.daniweb… Increment value of MySQL columnJSP button 15 Years Ago by romilc …;body> <FORM name="welcome" method="post"> <marquee> Welcome to the Tic-Tac…> [/CODE] With the above I m not able to increment the value of hitCount in the MySQL each time when… Increment using a Pop-up..+1 +1 +1 +1 :) 14 Years Ago by ekseks … window) well what our problem is that we need to increment or rather add +1 vote to the university or whatsoever… id="form1" name="form1" method="post" onclick="popup('popUpDiv')"> <label>… increment a variable name to open files 13 Years Ago by logicmonster … variable, and then change the file name to increment indefinitely? I found this post but i'm still a little unclear, [URL… Re: increment (++) fails 11 Years Ago by TokamakFusion … non-sense construct after all. When I made my original post I was subjected to some extremely rude behavior. I do… things go here, I expect some asinine responses to this post – which I most likely will not see as I do… Post fix not evaluating in time 13 Years Ago by bloodbender …;x" evaluates to 7 and rightly so, but the increment operator doesn't seem to kick in to set it… 9 like it should, but can someone explain why the post fix isn't evaluating at the end of the statement? Re: Post fix not evaluating in time 13 Years Ago by bloodbender …'s not what I was asking. If you read my post again, I said [QUOTE]"Why does that print 7…;x" evaluates to 7 and rightly so, but the increment operator doesn't seem to kick in to set it…