not initialised is allowed

What does it mean?

An array of pointer?

if initialised, its contents can't be changed, isn't?

What does it mean?

...

good idea, I try it...

guys im reading the cprimer 5th edition book , in the 2nd topic rn , types . why are even loops used here :/ when its not explained :c

but have one problem, actually, a[] have many elements...

the bytes/words context is confusing af :c

i got told the 2nd chapter wouldnt have any advanced unexplained stuffs :c

but it does have that :c , loops/if else

yes im doing that

its just about variable and types/ why does it even have those loops stuffs :c

yes, I am always confused with memory management.

i mean why does the chapter that claim to teach only variables even give other examples of loops which havent even been explained before :/

i mean why does the chapter that claim to teach only variables even give other examples of loops which havent even been explained before :/

the first chapter explains all basic stuff like conditions and loops

heck the first chapter even introduces classes

heck the first chapter even introduces classes

yes but thats like just an overview of all the chapters

it doesnt even tell how to add functions to a class header and tells to use it :c

yes but thats like just an overview of all the chapters

no. there is no separate chapter on stuff like for loops. the book expects you to have some programming knowledge

"even give other examples of loops which havent even been explained before"

oh you are right

no. there is no separate chapter on stuff like for loops. the book expects you to have some programming knowledge

:/

:c

:/

red - your complaint about usage first and implementation later blue - expected background

red - your complaint about usage first and implementation later blue - expected background

oh :(

oh you are right

ye but it is not exactly equivalent to C books where there are entire chapters on loop with repetitive tasks and gigantic explanations for everything

red - your complaint about usage first and implementation later blue - expected background

i do know most of the basics tho! but am just seeing it as a beginner's view and thats not quite good for a beginner to learn stuffs that jump straight to the complex stuffs (while teaching basic topics) without quite explaining it , like why cant teach stuffs in an order :c

i do know most of the basics tho! but am just seeing it as a beginner's view and thats not quite good for a beginner to learn stuffs that jump straight to the complex stuffs (while teaching basic topics) without quite explaining it , like why cant teach stuffs in an order :c

ye. but the beginner should read the preface of the book to learn what they should expect from the book and what the book expects from them

ye. but the beginner should read the preface of the book to learn what they should expect from the book and what the book expects from them

yeah i'll just go with the creator's book then :c

yeah i'll just go with the creator's book then :c

you don't really have to. just read the first chapter

you don't really have to. just read the first chapter

the overview?

the overview?

ye Chapter 1 Getting Started

ye Chapter 1 Getting Started

ive read 70% of that , got stuck on the classes part and started 2nd chapter

ive read 70% of that , got stuck on the classes part and started 2nd chapter

:/ 70% of that includes the section "The for statement"

and the section "Flow of control"

guys ive started reading the cprimer book , in the classes topic rn , it doesnt even tell how to add functions in the class header , and gives exercises on it :/

shouldnt it even teach how to add statements/functions to the class header? the code doesnt even work

or at least mention it

shouldnt it even teach how to add statements/functions to the class header? the code doesnt even work

bruh

yeah its a custom header, shouldnt it explain that too :/

yeah its a custom header, shouldnt it explain that too :/

find the first time the header is mentioned

library*

in that chapter it didnt wys :c

Why all my external link was removed

in that chapter it didnt wys :c

section 1.5.1 The Sales_item class what it is, how to use. Exercise 1.20 how to download

Why all my external link was removed

you just joined. add some spaces. www. example dot com

Ok thanks 👍

char* bhmac(char* data) {         unsigned char *key = SECRETKEY;       unsigned char *result;       int result_len = 32;       int i;       //static char res_hexstring[32];       char *resptr = (char*)malloc(sizeof(char)*32);       result = HMAC(EVP_sha256(), key, strlen((char *)key), data, strlen((char *)data), NULL, NULL);       for (i = 0; i < result_len; i++) {         sprintf(&(resptr[i * 2]), "%02x", result[i]);       }       return resptr;  }

Can someone help with this code?

There is a problem with memory allocation

Too small

But the for cicle stop at 32

Thanks for pointing me in the right direction

section 1.5.1 The Sales_item class what it is, how to use. Exercise 1.20 how to download

ive tried that , gives me a link to buy the ebook

like how hard is it to scroll

ive got the gcc file already

ive got the gcc file already

it has the Sales_item.h file in the folder named 1

ive got the gcc file already

btw almost every repo that posts solutions to the book includes the file, including mine https://github.com/chandradeepdey/C-_Primer_5th/blob/master/book-resources/Sales_item/Sales_item.h

red - your complaint about usage first and implementation later blue - expected background

btw ik all of these stuffs so like can i head over to cprimer?, stroustrup's book seems beginner friendly af , idk wut to choose :c

btw ik all of these stuffs so like can i head over to cprimer?, stroustrup's book seems beginner friendly af , idk wut to choose :c

that is something you need to figure out yourself. you were complaining about some things the book apparently skipped, i just pointed you to the relevant sections. C++ Primer starts discussing the while statement like this "1.4.1. The while Statement A while statement repeatedly executes a section of code so long as a given condition is true. We can use a while to write a program to sum the numbers from 1 through 10 inclusive as follows:" in my opinion, if you are expecting entire sections on writing repeating code, learning why repeating code is bad, learning how loops solve it, then learning the actual loop syntax; you should read stroustrup's book or some C book if you are not expecting that, stick to Lippman

btw ik all of these stuffs so like can i head over to cprimer?, stroustrup's book seems beginner friendly af , idk wut to choose :c

Bro try A video course

Bro try A video course

i watched a freecodecamp vid , it was great

Is there some way to tell c++ to NOT include stdlib?

Everything I find on the internet is useless

(As in no effect)

Don't include any code that uses the STL in your headers or suppport libraries and do not use the STL name space

Otherwise its an auto dependency.

The problem is that I define getchar()

Does that work if I define via extern keyword?

okay.

extern char test::getchar(void); Like this?

error: ‘char test::getchar()’ should have been declared inside test :-/

oh.

Does not work since the functions are pure C

Lol

Damn I just linked a message

@K11M1 you fucked up

I have no headers yet

@K11M1 you fucked up

OH FUCK