also what i love about C is that there's also embedded languages like Lua, so you can use them to interface with your robot which is amazing

Ohh thats right but am not good enough in c++

are you better in assembly than in C

are you better in assembly than in C

Really good

what kind of asm

hey, I want to use the class "Student" inside class "Class", but it wont let me this way: https://pastebin.com/iAAnqLQC , pero cuando pongo la clase "Estudiante" primero que la clase "Clase", no pasa este error, debería ser así?

Am having better understanding with low level language moving towards the high level ones "bottom up approach

there's other way to do that, you can make a namespace and declare your class within it

then you can access your class like "Estudiante::Clase", "Estudiante" being the namespace

oh wait i actually misread your question

my english is gone, ty

lo que pasa es que you're trying to look for a class which is not declared "yet"

Remember guys, Only english language is allowed

remember that the code is read from top to bottom

Remember guys, Only english language is allowed

yes, but we're not establishing a complete conversation in spanish so its fine

remember that the code is read from top to bottom

when the compiler arrives at your "Class" class, it realizes you're trying to use a "Estudiante" class which is not declared yet the compiler doesnt know you're gonna declare it later so it breaks

I didd it, thank you :)

#include<stdio.h> #include<stdlib.h> #include<strings.h> int main() { char name[128]; printf("Type your name: "); scanf("%s",& name); if(strcmp(name,"Bob\0")==0 || strcmp(name,"Alice\0")==0 printf("Best wishes and greetings %s\n", name); return 0; }

is this correct?

is this correct?

test.c: In function ‘main’: test.c:10:8: warning: implicit declaration of function ‘strcmp’ [-Wimplicit-function-declaration] 10 | if(strcmp(name,"Bob\0")==0 || strcmp(name,"Alice\0")==0 | ^~~~~~ test.c:4:1: note: include ‘<string.h>’ or provide a declaration of ‘strcmp’ 3 | #include<strings.h> +++ |+#include <string.h> 4 | test.c:10:60: error: expected ‘)’ before ‘printf’ 10 | if(strcmp(name,"Bob\0")==0 || strcmp(name,"Alice\0")==0 | ~ ^ | ) 11 | printf("Best wishes and greetings %s\n", name); | ~~~~~~ test.c:13:1: error: expected expression before ‘}’ token 13 | } | ^

is it correct then?

is it correct then?

Why you type \0 in the string "str" is equal to 's' 't' 'r' '\0'

#include<stdio.h> #include<stdlib.h> #include<strings.h> int main() { char name[128]; printf("Type your name: "); scanf("%s",& name); if(strcmp(name,"Bob\0")==0 || strcmp(name,"Alice\0")==0 printf("Best wishes and greetings %s\n", name); return 0; }

why are you using null terminators im so confused

please correct it

is it correct then?

it has a syntax error, and "strings.h" is probably "string.h"

please correct it

#include <stdio.h> #include <stdlib.h> #include <string.h> int main() { char name[128]; printf("Type your name: "); scanf("%s",& name); if(strcmp(name,"Bob\0")==0 || strcmp(name,"Alice\0")==0) printf("Best wishes and greetings %s\n", name); return 0; }

oh than you

yw

you're right

yay

i feel like this was just some sort of homework...

Hello there! Could someone help me in solving my problem, it lies in the fact that I cannot display two words, the last letter of which is the same. I found this case, and I display the letter that matches, but I don’t know how to display these two words.

i feel like this was just some sort of homework...

yeah but ill help if they at least demonstrate an attempt to solve their problem

hey guys how can i count the occurence of a letter in a given word ?

hey guys how can i count the occurence of a letter in a given word ?

std::count(str.begin(),str.end(),'s');

std::count(str.begin(),str.end(),'s');

first of all i'm still on using namespace std; so i don't use std::cout or any thing

first of all i'm still on using namespace std; so i don't use std::cout or any thing

Ehem, ok?

Hi

What is the uses of "extern c;" in a code

And in which function we will run it

What is the uses of "extern c;" in a code

i think it's used to extend the visiblity of the variable

i think it's used to extend the visiblity of the variable

In c language?

In c language?

yea

So , why we used "func()" in our code lol?

What is the uses of "extern c;" in a code

Extern says compiler that your variable is already declared somewhere else, and u don't want to create another one, u say to compiler :"Please, find that, I already have it"

Extern says compiler that your variable is already declared somewhere else, and u don't want to create another one, u say to compiler :"Please, find that, I already have it"

Thx

Extern says compiler that your variable is already declared somewhere else, and u don't want to create another one, u say to compiler :"Please, find that, I already have it"

What's the main definition of itM ?

What's the main definition of itM ?

For example you have a big global object in some file(not the most common example, butc just imagine) and you need this one in another file But, to create this object, imagine, we need 3 seconds. So, we don't want to create one more such object and waste 6 seconds except of 3 one time So, there it goes. In the file we want to use this big object we say to compiler extern BIG_OBJECT; This way compiler won't create one more object for your file, it will try to find it somewhere.

For example you have a big global object in some file(not the most common example, butc just imagine) and you need this one in another file But, to create this object, imagine, we need 3 seconds. So, we don't want to create one more such object and waste 6 seconds except of 3 one time So, there it goes. In the file we want to use this big object we say to compiler extern BIG_OBJECT; This way compiler won't create one more object for your file, it will try to find it somewhere.

Ohh wow thx

If I'm missed, experts, please, let me know and say what's wrong

If I'm missed, experts, please, let me know and say what's wrong

He asked about "extern C" which is a language linkage directive. You explained about external linkage. extern "C" does a lot of additional things like for example turning off name mangling amongst other things.

He asked about "extern C" which is a language linkage directive. You explained about external linkage. extern "C" does a lot of additional things like for example turning off name mangling amongst other things.

Oh, thx, my bad

first of all i'm still on using namespace std; so i don't use std::cout or any thing

"using namespace std" is a bad practice

What is the uses of "extern c;" in a code

it disables name mangling

He asked about "extern C" which is a language linkage directive. You explained about external linkage. extern "C" does a lot of additional things like for example turning off name mangling amongst other things.

yea

apart from disabling name mangling

what does it do

Yes?

Yes?

yes

apart from disabling name mangling

The language linkage directive could also control calling conventions.

I found some headers would, under a certain namespace, declare a class like class Foo; which is defined and implemented in a separate .h and .cc file; what is the purpose of this line?

I found some headers would, under a certain namespace, declare a class like class Foo; which is defined and implemented in a separate .h and .cc file; what is the purpose of this line?

You probably talking about forward declaration https://www.google.com/amp/s/www.geeksforgeeks.org/what-are-forward-declarations-in-c/amp/

hi, why the message "the project does not know how to run the profile" of my application?... in visual studio, when running the debugger

hi, why the message "the project does not know how to run the profile" of my application?... in visual studio, when running the debugger

You have not selected the right project to execute when you click run... On the right side, right click on the project you want to run and click "set as Startup Project".

Hi

What pinned message?

What pinned message?

https://t.me/programminginc/283193

is there somthing wrong here that im missing ? ==== module_b.c ==== static char buffer[200]; char * pGetModuleBuffer(){ return buffer; } ==== module_a.c ==== function_a(){ char *pWriteBuffer = pGetModuleBuffer(); snprintf(pWriteBuffer, 200, "text stuff %d", 123); }

is there somthing wrong here that im missing ? ==== module_b.c ==== static char buffer[200]; char * pGetModuleBuffer(){ return buffer; } ==== module_a.c ==== function_a(){ char *pWriteBuffer = pGetModuleBuffer(); snprintf(pWriteBuffer, 200, "text stuff %d", 123); }

somthing in snprintf <

and you include module b in module a?

well im getting "implicit declaration" but that doesnt matter.

linker is smart enough to find the fucntion

meaning yeah .. i didnt do prototype of the function in module_b.h

Can anyone recommend me how to begin c++ like resources to learn and practice?

is there somthing wrong here that im missing ? ==== module_b.c ==== static char buffer[200]; char * pGetModuleBuffer(){ return buffer; } ==== module_a.c ==== function_a(){ char *pWriteBuffer = pGetModuleBuffer(); snprintf(pWriteBuffer, 200, "text stuff %d", 123); }

Shouldn't the "text stuff %d" should be %s?

I'm a beginner

Can anyone recommend me how to begin c++ like resources to learn and practice?

YouTube

linker is smart enough to find the fucntion

i don't think that is the... clever way...

i mean i get that you are creating static hcar buffer... but it seems a bit wrong...

YouTube

Can you be a little more specific it's filled with many bad mentors too especially after the removal of dislike button

i don't think that is the... clever way...

i know im debugging now, not final code.