String Literals in C++

[@ahumanzr]

Cherno: 6:00 "Please never spell it like that ever" The top five comments: "Charno"

[@thedeliverguy879]

Those are the ones that are willing to learn hahahaha

[@southparkclips221]

Haha, Nailed it!

[@user-ic5nv8lj9d]

XD

[@humbledcomposer]

😅

[@danielc4267]

Charno talking about char related stuff.

[@dimitri929]

The Charno is making one of the best c++ tutorials

[@h.hristov]

Thanks Charno! A very informative video on string literals

[@strange1702]

after 5years top comment does not even have a single reply lol

[@VortexInfoTech-gw8hp]

In this video he said the correct is Cherno not Charno

[@strange1702]

@@VortexInfoTech-gw8hp he was joking 🤣 you should understand what joke is lol

[@brandx5443]

I'd swear he said Chaarno. @@VortexInfoTech-gw8hp

[@LucidStew]

Thanks again for the great series, Charno

[@tiancilliers]

TheCharnoProject back at it again with great vids!

[@blank-vw2sb]

Cherno: please never spell it like that ever. 99% comments: The CHARNO!

[@prayagparikh8020]

Great tutorial Charno! Keep it up, Charno!!

[@DainYanuka]

I like how the subtitles said 'White Cabbage' instead of 'Wide Character' at 6:55 xD Thanks Charno for the great vid!

[@teachyourselfcs]

Don't stop being this deep with your explanations (strings in the stack vs read-only segment, heap, etc) for students like me this is the first "top to bottom" example that lets me integrate all the theoretical concepts in a single video explanation. You are a top class teacher (and programmer 😄) that allows me to connect all the dots

[@kanishk9490]

The auto generated subtitles be like : "Hey What's up guys my name is Archana and welcome back to my figure of blood theory"

[@forhadrh]

Yeap we admit, youtube subtitle still sucks a lot 😖

[@helpfulsquid2502]

AHAHAH true, I've noticed some similar examples in his other videos

[@KPkiller1671]

Charno

[@zyansheep]

Lesson Learned: Never ask the internet not to do something

[@UA441]

I would make that joke!

[@woosix7735]

Charno

[@AdonaiDio]

The hardest on the playlist so far. Great video! I understood better than reading the books I bought.

[@davitgoderdzishvili9187]

amazing! this is one of the best channels about c++

[@poonikarthu4988]

Extremely helpful tutorial Charno! Keep it up!

[@cajogos]

I've been a subscriber for years man, I remember doing your old Java game engine series! Now that I am doing C++ at uni, these series is what I've been looking for! So glad you are still doing them :D

[@ezshroom]

I was looking for how to make games in Java and I saw his videos, then I had a look around and found these

[@92309858]

Charno:)

[@domthehypocrite]

Ye hav bin bannishhhheeedd.

[@woosix7735]

Charno

[@XaviosAedifica]

The moment you said Charno I preemptively laughed becaused I knew the comments would be nothing but Charno

[@vzxdarkangel1999ful]

I like internet

[@exnaruto1]

Yes! Finally caught up

[@daniyelzhumankulov7733]

You are really amazing!!!!!please don't stop making videos. I truly think your series of these c++ tutorials are on of the most useful ones on the internet

[@OFaruk58]

thanks Charno ! great vids

[@muhammadtaimourafzal5285]

Cherno: "Confused about strings ? Aren't we all !!!"

[@Erebus2075]

these are definately the best C++ serie i've seen. easily understood and it is very nice to get what is happening behind the scenes; makes it easier to grasp ^^

[@TalisBarbalho]

Loving the videos and frequency. Thank you so much. It gets more and more exciting the more advanced you go.

[@master138]

10:15 That R thing was pretty useful. Specially for somebody who does GUI apps with a lot of error/warning dialogs.

[@hanzofactory]

Cherno I just wanted to say that thank you so much for this series. I recently got into professional training for RealTime Embedded, and since we program mainly in C, all of this knowledge of the backside of C/C++ has come in incredibly useful since we work at a very low-level environment. You have no idea how grateful I am, I would have had a much harder time if it weren't for you!

[@josiahb.8611]

You spelt charno right.

[@sallaklamhayyen9876]

awesome thank you Chreno we need more like that in detail explanations

[@stathisstathopoulos9007]

Thanks a ton Charno, nice vid!

[@krec348]

Things get more interesting from time to time... Awesome work Cherno :)

[@yogurtbee7050]

So many thanks to you Charno , hh , A super excellent video I've ever seen on string literals, awesome ! you are my super hero !

[@ImmortalSoulOfIndia]

Hey Charno, I saw a very informative session on "String Literals". And It is explained well too. Hats off you Man. I am from INDIA.

[@francobarrera5327]

Nice video Charno! ♥

[@raashidansari]

I am amazed by how much I learned today! Thanks @TheChernoProject.

[@shakedmigdal6364]

"ohh look a nice string quirky stuff that i didn't know" "OH MY LORD IS THIS THE ASSEMBLY FILE" thats pretty much sums my reaction. great video

[@youcefbouda6856]

That's gonna be useful, thanks Charno

[@shushens]

Q: What would be Charno's next vacation spot? A: Charno-bill.

[@suntzu1409]

I see what you did here

[@bluehornet6752]

At 6:35, MSVC now seems to care as of VS2019: It now requires me to make it a const char*...

[@xrafter]

Yes they change it. But it still will give an warning not. An error so it is okay

[@kavindaravishan7351]

wow Charno, this course is amazing.

[@_blank86a]

a video on working with different string encoding like utf8 utf16 utf32 in a gui based applications in c++ along with different factors like compiler flags or settings that should be enabled or some other stuff need to work with these encodings would be great.

[@yamgabby8715]

Thank you Charno !

[@kishorekurapati9172]

Cherno mentioned that const char array can be modified in previous video. In this video, he told that it was by mistake. This c++ series is one of the best c++ tutorials. Even paid tutorials are not this professional or shares such knowledge.

[@StevenMartinGuitar]

Thanks The Charno!

[@dabodyx]

here i am 5 years later, joining the charno hype

[@Simple_OG]

6 🙋

[@iwolfman37]

I'm not sure if this was the same back when he made the video, but there's actually a different wat to spread a string out over multiple lines, a method which actually applies to all types of statements, not just those that contain strings. To spread a statement over multiple lines, you simply use the backslash at the end of the line. So for example: const char* helloWorld = "Hello \ World !"; // This compiles to a string that would print out as simply "Hello World !" and is considered a (const char[14]). And this method applies to any statement like I said, so you could also write a statement like this one: int a = 1 + \ 2; // And this would also compile just fine and print out int a as 3.

[@Popart-xh2fd]

10:36 Here you have just shown that it's possible to append strings by simple not using the + sign and separate them with a blank space!

[@bitmobile5587]

Thanks Che\0! Great tutorial!

[@LS-cb7lg]

char[] s = "Love your series, Cherno!"; s[20] = 'a'; std::cout

[@henriquebussi]

thanks charno

[@entity5209]

Oh god imagine learning string s 2nd time here lol I know what string does but im still watching this video charno explains what they actually r and I'd rather know what I'm typing instead of just typing it and expect it to work just to end up with bunch of bugs the charno cpp tutorials r the best

[@martiananomaly]

Another great video by The Charno!

[@mikicerise6250]

ALL LIES!!!! THE REAL REASON COMPUTERS WORK IS DAEMONS MAKE THEM WORK CUZ BILL GATES PRAYED TO SATAN!!!!! OPEN YOUR EYES!!!!

[@FreeDomSy-nk9ue]

I think you're wrong about this 11:16. I just tested it and the string gets modified in place both in release and debug mode. Even the assembly I got is different than the one you got. In my case it was 3 lines of assembly where the index was loaded into eax and the string was modified at eax! @The Cherno

[@batman_1st]

Thanks charno

[@shishirjais]

You're "literal"ly the best.

[@myriadtechrepair1191]

Using Visual Studio 2017 Enterprise the non-const char* name = "String"; does return an error. Maybe they heard you or maybe enterprise operates differently. I got enterprise from my school so I decided why not use it. error C2440: 'initializing': cannot convert from 'const char [8]' to 'char *'

[@vertigo6982]

The knee... sweep it.

[@Lmao-ke9lq]

im using visual studio 2019 community and i cant make non cost char* name = "string"; too. so its not caused by enterprise version of VS

[@marlonbrade9004]

Hey i just notice that if you go , std::wstring name0 = L"Cherno" s + L"cherno"; when printing you should also include, std::wcout

[@soumyakantigiri]

Okay, so I didn't understand the last part. When I tried to do it with memory open, we can see that the value changes exactly where it was so is it like it makes a copy changes the value and re-assigns the literal in the same location? I didn't get it

use move void PrintStr(std::string&& string) { string += 'h'; std::cout

[@Durgasivakumaran]

Really awesome. Thanks for effort

[@murtazahussain6301]

Thanks Charno

[@sree4448]

this really helped,thanks

[@colorlord98]

Charno!

[@sfafsashfdh6589]

nice video charno

[@higiniofuentes2551]

And if we add the code page how it will be added in a string with more than one type of code page?

[@LameDuckStudios]

I can't seem to run any of this with char* name = "cherno"; I get "initializing: cannot convert from const char [7] to char*" I also can't run this if I insert the backslash 0 into the string. "che\0rno". I get "name array bound overflow" for that one. I'm in MSVC 2019.

[@Brotcrunsher]

Wow, that string literal s is interesting. Do you know if it would be somehow possible to code this yourself or is this a pure compiler/language feature which would not have been possible to implement ourselves?

[@TeeDawl]

Its possible. If you're interested, google "operator overloading c++". You can do really cool stuff. Thats what the class does, you can see that when he hovers over the string. foo::operator ""s(...) You can overwrite pretty much everything and create really weird and amazing stuff.

[@Brotcrunsher]

Oh my! I thought only the basic operators could be overloaded. That's cool!

[@dekrain]

It's also used in "chrono" module for time literals

[@Gunslinger962]

thanks Charno!

[@VictorOrdu]

Fantastic stuff!

[@GenericPhantom1]

String literals are a series of characters between two double quotes

[@Steven-tw7iz]

very useful info in this one!

[@majedalshaikhi]

Hi Cherno, I am using Visual Studio Community 2022. Can you tell me where I can find the "Memory Mode" that you use to check how memery allocates bytes for different variables ? Could not find it at all !! 😔thank you

[@JoCS11152]

mind fucking blowing

[@LuxeonIII]

In the c++ bideo 32 How strings work, I get an error on the

[@LuxeonIII]

Never mind forgot #include

[@chainonsmanquants1630]

Thanks !

[@onurucar1112]

thanks charno :)

[@SuzukaTheBest]

I dont get it with const char*. If * only pointer which holds address in memory, why when I'm printing * pointer to console it looks like "001DFB58" but when we printing in console "const char*" it shows like normal string and not the address of first char in the array.

[@tanweerashif]

Which IDE are you using? Most IDEs don't let you see the things happening behind the scene other than the compilation error log.

[@suntzu1409]

Visual studio

[@nickey0207]

Damn, your hair is PERFECT!

[@iBlaze1232]

U sure about that?

[@ibrahimg.4469]

Thank you

[@uoweme5grand]

quick question for anyone willing to answer/have the answer: const char* name = "Cherno"; does that mean you don't actually have to provide the char pointer with an address when it comes to string? and when he later tries to modify the string, he also did not dereference it.

[@uoweme5grand]

@Peterolen Thank you kind sir for your quick and helpful reply.

[@ContentConsumer90]

@Peterolen since name is a pointer variable, shouldn't it print a integer? my doubt is how cout

[@ContentConsumer90]

@Peterolen thank you this helped a lot, always had this doubt. CHEERS!

[@ali-4096]

Can you export your visual studio settings. That would be great. Because I love it!!

[@johannes1464]

Check his first video's in this series

[@spacetime_wanderer]

It beats me - why am I getting :A value of type "const char * " cannot be used to initialize an entity of type "char *", when doing 'char* var1 = "Hello"; ' I am using Visual Studio 2017. According to Cherno, VS allows this, and he isn't getting error. But I am. What could be wrong?

[@mayurkulkarni755]

Thanks for this! This is extremely helpful! Charno ;)

[@CacheTaFace]

So... a string is an object of type std::string (which basically a char* bundled up with helper functions), while a string literal is a read only value that can be assigned to string objects? So string literals are not strings, and strings are not necessarily string literals?

[@MrRiceKrispyNotTaken]

why i can't use char* name = "Che\0rno"; name[2] = 'A'; on new versions of visual studio? i get this expression must be a modifiable lvalue

[@feraudyh]

I thought there could be strings in which some characters take one byte, and some take more. As in UTF8 encoding. Is this just true for strings stored in files or in streams?

[@ammgnero]

Thanks mate.

[@xrafter]

But char is signed integer why you give it a unsigned prefix?

[@felipevillamil8454]

why if I do sizeof(wchar_t) i get 4? shouldn't I get 2 instead?

[@orocimarosay1447]

hot to read a string with a space like if i use system("c:/documents and settings") it will only take c:/documents and how do i convert int to a string

[@killakill8731]

the first i don't know what you wanted to say but about convert int to string: #include int main() { int num = 10; std::string intToString = std::to_string(num); }

[@thang4671]

Isn't char* a pointer type, which take something like &name as a value? How are you assigning a string to that?

[@user-dh8oi2mk4f]

A string literal is an array. Arrays implicitly decay to pointers during assignment.

[@h.hristov]

I have 2 questions. If you could answer any of them, I'd be grateful! 1. If you define the same string literal twice, for ex. const char* name1 = "Cherno"; const char* name2 = "Cherno";, does the compiler notice it and create only one instance of "Cherno" into the read-only part of the executable in order to save space? Therefore making name1 and name2 point to the same memory location where "Cherno" is. 2. If I call a function with the prototype void test(char* arg); and pass in a string, for ex. calling test("Cherno is good");, is the string literal "Cherno is good" put into the read-only memory during compilation? So when you call that function, a char array is created on the stack and is initialized with the string literal "Cherno is good" which ion its own is in RO, and then that array is passed as the argument to the function. The function handles it as a char pointer, therefore allowing us to modify the contents of the array.

[@julien-scholz]

@Lightslinger Deadeye 2. Nah I don't think so, the string literal is constant, and passing it as a pointer to a function doesn't change that. The pointer just points to the constant part of the memory.

[@elgs1980]

#include int main(int argc, char const* argv[]) { char* a = "Cherno"; char* b = "Cherno"; char* c = "Charno"; printf("%p ", a); printf("%p ", b); printf("%p ", c); return 0; } Try run this code. I got: 0x55fbf81f1004 0x55fbf81f1004 0x55fbf81f100f Hope this should answer your first question.

[@f.r.i.e.n.d.s2368]

thanks a lot . if you could make videos on graph that'd be awesome :D

[@sachof]

Could you explain the purpose of QStringLiteral ?

[@ultimatedragon4281]

I had a bit of problem using the "strlen" function. For some reason stdlib.h did not include it. If someone else has the same problem, the solution that worked for me was to include cstring instead of stdlib.h. That should make the function work.

[@mohammedamer8075]

thanks

[@mych5713]

So when I write char name[] = "Cherno"; the compiler always makes a copy of the string literal "Cherno" at a non-read-only memory, right?

[@minyeongjeong]

great video

[@lysdexic9129]

Hi, I've noticed you endian swap addresses when you look into memory is this related to how data is stored in arrays?

[@mytech6779]

It does effect 16bit storage units like ucs-2 and utf-16 when moving data between little endian and big endian machines, it does not effect single byte code units like latin-1 and UTF-8.

[@user-dh8oi2mk4f]

No, it’s related to how data is stored in integers. Most human languages store numbers in big endian. The first digit in a number has the most value(i.e. in the number 123, the 1 is worth the most). On the other hand, most CPUs store the digit with the least value in the first bit because it’s easier to operate on. This means when you want to peek at memory, you have to swap the bytes because the CPU stores them differently from how you read them. It has nothing to do with arrays.

[@greob]

Nice! You're churning out videos these days, we should call you TheChurno now. ;-)

[@pradyumnkejriwal3007]

Njul it would be pronounced the same

[@kofer99]

that's the point i think

[@mrbee8336]

Your profile pic tho

[@LxAU]

Love it! Way more witty than all the predictable Charno comments…

[@tacodiva7729]

TheCharno*

[@ibiixie]

Why are string literals stored in read only memory? Why are they not just stored like any other pointer?