Buckys C++ Programming Tutorials - 21 - Assignment and Increment Operators

[@mrAspDotNet]

x++ increments the value of variable x after processing the current statement. ++x increments the value of variable x before processing the current statement.

[@jakethesnek1443]

Bucky is my hero. I'm 2 Weeks into my intro to C++ class and I've already learned everything we will cover in 10 weeks.

[@Remychels]

Bucky you rock! Best C++ teacher yet.

[@arandomboredindividual7855]

still the best c++ tutorial on youtube and its 2021

[@ValdiBald]

Awesome tutorials Bucky! One point, "++" is a function with a return. So when you do x++ your calling a function that increments x but the "post++ function" is designed to return the old value in case you need it (in most cases you don't). If you do the "++pre function" your calling another function that also increments but returns the new value. That's why your getting 20 because your not asking for x, your asking for the return of the function. It does increment before the end of the line and you can see that e.g. if you do: cout

[@UncannyAura]

...It helps and simple...I suppose but it's too long an explanation, its irritating. Doing x++ is like telling the computer to increment the value of x after the line of code. Doing ++x is telling the computer to increment the value of x before the line of code. The End.

[@ValdiBald]

Uncanny Aura Your right, its way too long. One thing, in both cases it increments x before the line ends. That's my over complicated point. What I'm trying to say is that the new value of x and the return of the ++ function are two totally different things. Hope it helps :)

[@UncannyAura]

ValdiBald Ok, much better :)

[@SlightlyNerdyGaming]

Finally, Bucky taught me something that the comments taught me 3 videos ago. (Talking about the '+=' thing.)

[@ShadowTetsuo9999]

im actually glad i came across your comment,lol I am trying to learn C++ and i was about to wait until i got to lesson 30 then spend about a week reading the book then come back and see if i grasp more of what Bucky is teaching, so far i love these tutorials, he explains very well

[@umarbekinalkar2314]

still best c++ tutorial in 2021

[@srijal]

No of viewers decreases as we progress to each tutorial.

[@ClaudiuB]

cuz they're Fat::Lazy(time, age, weight, country, motivation)

[@Mystosia]

nah they are straight up Boring::Lazy(time, age, intelligence, motivation)

[@zapxcero]

r/iamverysmart

[@arandomdude1741]

It decreases because people just give up to continue.

[@ankursingh8296]

True. agree with it

[@reziyemusulaiman9323]

omg, this guy literally teaches everything in so simple and clear way, thanks bucky

[@unison1978]

these are the details that matter when learning programming... Brilliant!

[@_sideways_6321]

You teach way better than my lecturer THANK YOU FOR EXISTING

[@voidarts1176]

Bucky, you will always be a double plus in my books!

[@JohnMcclaned]

I have watched all these videos in like a day, with no previous experience and understand basically all of it. I guess it just comes down to practicing what I have learned and experimenting different things :) GET EXCITED! One step closer to world domination

[@NeilRoy]

Actually, C++ will follow the line and execute each statement as it goes. ++ is actually a command that would get interpreted as a machine language instruction like INC (increment). So if you read through the line again... you may understand why it prints out the unincremented value first with x++. This is what the compiler sees... cout

[@RedsBoneStuff]

4:14 Prints "21" twice. _And_ this is episode 21. _And_ 21 is my favourite number. What are the chances ...

[@bocbinsgames6745]

RedsBoneStuff hate to say it but the program is not using any random operators so the chances were 100% that it would be printed. sorry if i ruined your miracle.

[@RedsBoneStuff]

TeamGBplaysminecraft Yes, I know all of that ... but Bucky chose 20 "randomly" because any number would be fine. He did not, however, know that 21 is my favourite number. And I'm pretty sure he didn't intentionaly link this with the number of the episode.

[@bocbinsgames6745]

ok true

[@PS2Damon]

RedsBoneStuff he didn't pick 20 randomly, he said that it was his favorite number..

[@mishoaleksidze7820]

+RedsBoneStuff So, do you think you're special?

[@SebSharma]

Sorry guys, I had too #include using namespace std; int main() { int a = 1; int num = 0; while(a==1){ cout

[@blade55555]

Agreed. When I was younger about 6 years ago or so (about 13-14) I tried to teach myself C++ and didn't really understand it. I am now 20 and I am understanding this unlike my younger self. Kinda crazy because I just wanted to jump straight into game programming which now that I know how it works a bit more, is a long way off ^^.

[@dave369_]

Great explanation of pre and post increment operators 👍👍🙂🙂

[@michaelC2585]

@iYateszy no. it must be after to tell the comp. that it needs to increment by one. you could do that if you had a variable called '++x'

[@toringedotno]

@Regginyaga It because of UNIX systsems, 0 means the program quitted without errors. Numbers above 0 have their own error code.

[@Skulltroxx]

3:14 lmao i died XD //notice the timestamp (pie)

[@vagabon5130]

wow your very clear in your speaking. thx much.

[@blade55555]

lol I didn't even think about that. I just now noticed how much it dropped from the first couple xD.

[@ryndm]

Your amazing ur videos help me a lot

[@arthureru]

x++ uses the old value in the statement that it was used after the statement it increments ++x increments the variable before running the statement cout

[@buddyd2841]

The

[@loading_wait]

was it only me who giggled every time he said "twenny won"

[@murphydublin]

Thank you brother, your so genius.

[@Elcosmicstar1]

Hi Bucky, thank you for tutorials. I accidentally noticed while doing a lesson that if I leave out "int" at the beginning of "main" the program will still run, so I tried it with a few others and it stilled worked. I also observed that if I replaced "int" with "void" or any others, I would get the error message "main must return int". I guess, because main must return an int, it is also not necessary to declare it. "pretty cool huh".

[@josephlong169]

I made the mistake attempting to go though your Java tutorials before coming here...

[@youngGenzombie]

That comment actually makes me feel good about myself :D

[@sounakghosh8874]

i remember this part.. another tutorial used like 21 minutes to explain this simple thing

[@herp_derpingson]

Dont question my persistence! I went through all the 200 android tutorial videos :D

[@thered_hood7451]

best tutor ever

[@NickSecourity]

You are a very good teacher :D....

[@bryanswaggbeast8194]

so i believe C++ stands for #1 coding language i guess!?

[@TraceursMonkey]

Finally , someone who dose not haw an accent

[@masterhadi77]

ok but i dont get this; you already defined the variable x as 20. so cout

[@Telseilong]

i still would put return 0; looks like codeblocks holding your hand, which is good but other compilers could give you a WTF a int function not returning a int.

[@dibbiepk]

Assignment operators, Assignment operators, Assignmentoperators, got it! :P

[@cj_kreates]

Whose here 2022

[@victornnah3920]

Why does bucky not have any new videos or posts on any of his social media?

[@Direwolf56]

It's not programming itself, its the programs you create.

[@xXLanyuzAnlunXx]

can you do ++x++ :)

[@xXLanyuzAnlunXx]

oh lol

[@steve122288]

+Phloat Wireless yeah it gives me an error when i try that.. is there actually a way to do it? maybe its the standard that is preventing me in some relation to what peterolen was saying

[@steve122288]

error: 1value required as increment operand. That is what it tells me no matter where i place it. Good thing I would never have to do such a thing anyway haha.

[@joeygylytiuk3376]

well technically that'd be the same as incrementing "x" by 2, right? so same as{ cout

[@Capn-Coin]

Anyone have any idea why my program takes long to build and run?? its not the code because i've tried running just a hello world program... its starting to annoy me because it takes about 5 - 10 seconds to build and run each time I want to check my code...

[@Capn-Coin]

+Peterolen yeah it was. thanks :)

[@SamanGivian]

that happens to my visual studio too

[@Stavros33GR1]

is still your favorite number 20???

[@umaribnali2138]

Thanks a lot man! A big (Y).

[@steve122288]

if you can do "cout

[@steve122288]

interesting. I thought ++ was a shortcut for +=1 though so i would not imagine it to have higher precedence. It is still slightly strange that 20+x results in 30 where ++x is some kind of special operator to.. add a number to x? .. but it intentionally has a higher precedence? Well, i think the designer of c++ is playing a role here. Also i find it very funny that you can type 30; as one line haha. never knew this was ok it makes me rethink how a programming language works.

[@steve122288]

also I noticed in java it does not obey precedence with ehm math operands? I mean like 18 + 2 * 2 = 40 in java and other languages but in c++ it is like real math where 18 + 2 * 2 = 22 . I guess java doesnt have the

[@Ukid111]

Can you use modulus (%=) for an increment operator?

[@Ukid111]

+Peterolen Ty

[@asian_delirium]

I am totally new to this language and i have a weird problem here:just testing around when i find out that when i try this simple code: #include using namespace std;int main() { int x = 11; while(x>=0) { cout

[@kuraigu12]

+zzZMrWangZzz Save the project and relaunch the Code::Blocks. I've encountered these problems many times before I switched to Visual Studio.

[@huskie5279]

Thanks Bucky!

[@SamGulz]

Proud of myself for d first time

[@gabriellelopez-herrera820]

You are awesome!

[@Erox006]

how many favorite numbers do u have bucky ??

[@baddmanaz]

thanks, OBOEma!

[@TheJavaScriptKid]

if you understand Advanced Javascript You Can Understand C++

[@luksports555]

Wait, is there (varible)** or **(varible)?

[@That0n3Gam3r]

if the endl at the end of cout doesnt work for you then do this cout

[@LurkrulDoesThings]

did you not watch the last video? I think you should go back and watch it again if you didnt see the math.

[@TheCosmicChicken]

Just breathe, Bucky, breathe.

[@digitalhustler05]

thank you bucky too

[@FrankLopezx]

WHAT TYPE OF ANSWER WILL I END UP WITH? will it say 2 3 4? i#include using namespace std; int main() { int B = 2; cout

[@FrankLopezx]

any body can say that, but no one is going to give me the actual why breakdown

[@FrankLopezx]

why 4,4? if i go with that notion i wud say 3-4

[@FrankLopezx]

Jordan Filipovski those parameter can be change in cpp?

[@FrankLopezx]

oh right yes i forgot my own example lol ur right

[@angeldominguez1]

we also dont need the system("pause"); anymore uh

[@tutorialvalley4890]

its really true that a school degree is useless :) thank go i am only 12 so i dont have to boder about that

[@johnflatt665]

No sound on this or sololearn.

[@markanthonybulaon4113]

aklncasc: Buck Rules... \m/ you Buck my World \m/

[@keepingalowprofile]

%= is pretty mind blow

[@ClaudiuB]

"I'm 14 and cthuluhuh" "You're better than my teacher! f.him!" "did I spell anything wrong, yes who cares?42" ++++++++++++++++++++++++++++++

[@mrAspDotNet]

GJ!

[@kems1592]

Whats the use of this?

[@taylorsamy]

at this rate by the end it will just be my you and @supersush269

[@supbrotv]

WATERMELON!!

[@joetomaselli8084]

Are you trying to correct the amount of views? I mean, if so, then I don't think you understand how things change in time...

[@mathewseldo5774]

bucky ur vids r cool

[@sherifnegm9046]

good job

[@GBJaayy]

Me watching this video in 2021 and that was the first ouput of the program (20 , 21 ) 😂😂

[@nate9721]

I've heard that programming has to do a lot with math I still haven't seen the math side of it

[@jeremyride1]

anybody know a good free c++ builder program?

[@deadspeakers]

Visual Studio

[@thavrisco1632]

I like code::blocks.

[@rohankhanna8753]

can we start java without c++ ?

[@Tylernal]

Yes, C++ is more difficult and more useful than Java though.

[@rohankhanna8753]

i dont think so lol java is more useful than C++

[@Tylernal]

Rohan Khanna It depends what you want to make. For game design, C++ is better.

[@rohankhanna8753]

and what java is good for can u plz tell me !!

[@Tylernal]

Rohan Khanna Android apps

[@Tulanir1]

I never said 3D games :) i'm gonna start with 2D games

[@ajwayman4530]

twenty one... uh... twenty one

[@nate9721]

Except for variables maybe

[@Tulanir1]

Only 52 videos until i can start making games :D :/

[@malteeaser101]

'x = x + 10' is the same as 'x += 10'? Wow, now I can type one less character!

[@brandonjohnson2491]

And you will be typing even less characters when the variable is longer than one character. Also, don't forget to count your spaces, they are typed characters as well.

[@TheDarksiderrr]

That's just what he said ;)

[@herp_derpingson]

Tell me more that you are the CEO of some international corporation.

[@NDZ12345]

good video

[@SamGulz]

4 more in an year's time :P

[@nioway2198]

Hey guys does anyone think this is like way too easy?

[@gopinath27K]

21st c++ video has 43144 views now

[@poseidenjp1496]

whats that ? :D

[@alexandertouma5588]

x=20; z; z=x++ + x++; what is the answer?

[@Hairyson-g5j]

Alexander Touma: my answer is 41. So I guess for the first one you will get 20, and right after the first one x becomes 21, so for the second one you get 21, and z = 41, x= 22

[@alexandertouma5588]

@@Hairyson-g5j thank you, fellow Asian.

[@supTE]

Nice

[@ishaanpunetha]

Okay thanks

[@ShadowTetsuo9999]

seems you have a good summer break lol jkjk

[@avnisharma4902]

thanks

[@glenngroveau1807]

5 Tutorial Jul kkk99.oo

[@ThePyrotechx]

1 person has shaky hands.

[@psyckojoe]

Considering the first video was how to install a program with an installer, I'd say most people who watched the first video are either stupid or incredibly impatient.

[@CoreyJayB]

craziness