@programminginc - страница 2275

Alexzander

Everybody have good ebook or site tutorial for make desktop application in Linux/Windows (Native) ?

Anonymous

Sasuke

That's not how it works. Think about it Write your own solution if you stick somewhere or program is not working how u wanted it to. Then ask here

Anonymous

why it shows only 74 on screen?Can you explain?

Anonymous

why it shows only 74 on screen?Can you explain?

Do scanf three times for each input ig

Sasuke

why it shows only 74 on screen?Can you explain?

You are declaring the variables as int and storing values as float. Correct the type

Anonymous

Thank u so much

Anonymous

hello I'm trying to use the eof() method (?) dunno how to call (its my 3th day on C++) and I get an error error: use of undeclared identifier 'eof' the code: void leer_imprimir_en_pantalla (){ int variableauxiliar; char* path_archivo = "/Users/facundo/Documents/Facultad_Algo1/numeros.txt"; ifstream archivo; archivo.open( path_archivo , std::ios_base::app); while (!eof()){ archivo >> variableauxiliar; cout << variableauxiliar; } archivo.close(); } I've already googled but there's nothing on stack overflow sry :(

Anonymous

oh I see

Anonymous

thanks 🙏

304 Alakh

https://www.analyticsvidhya.com/blog/2020/04/machine-learning-using-c-linear-logistic-regression/?utm_source=AVLinkedin&utm_medium=post&utm_campaign=22_april_new_article My first endeavour into this field. Feedbacks are welcome

@tony_thedj

anyone who can help unlock a modem ??

Anonymous

Hi

Joo

What is the difference between declarations and definition

Francisco

What is the difference between declarations and definition

int f(int x); // Declaration int f(int x) // Definition { return x*x; }

Harsh

int f(int x); // Declaration int f(int x) // Definition { return x*x; }

++

Anonymous

anyone who can help unlock a modem ??

/warn offtop

Anonymous

What is the difference between declarations and definition

extern int a; // declaration int a; // definition or decl + def

Joo

Ok thanks

Joo

@unterumarmung are you saying declarations and definitions are the same?

Anonymous

@unterumarmung are you saying declarations and definitions are the same?

No

Anonymous

int a; is definition and declaration at the same time if there was no declaration previously, otherwise it's only a definition

Joo

I see thank you

Anonymous

hello everyone, i am trying to find size of the structs, however! when i run the sizeof(flintstone) on machine it gives me 40B, why? what am i overlooking ? ive used to the same machine to get the individual sizes of each datatype and calculated accordingly, but my total gives me 36*B instead of 40B. where have the 4B gone ? can anyone help with it. also, sizeof rubble, i got it as 16B, which is correct

Till

hello everyone, i am trying to find size of the structs, however! when i run the sizeof(flintstone) on machine it gives me 40B, why? what am i overlooking ? ive used to the same machine to get the individual sizes of each datatype and calculated accordingly, but my total gives me 36*B instead of 40B. where have the 4B gone ? can anyone help with it. also, sizeof rubble, i got it as 16B, which is correct

16 + 8 + 16

Till

Because aligning =)

Anonymous

Because aligning =)

sizeof(short) gives 2B, 2*2 = 4B is that the correct way to calculate ?

Till

sizeof(short) gives 2B, 2*2 = 4B is that the correct way to calculate ?

No

Till

sizeof(short) gives 2B, 2*2 = 4B is that the correct way to calculate ?

16 B 2 B 2 B free 2 B 2 B free 16 B

Anonymous

16 B 2 B 2 B free 2 B 2 B free 16 B

im sorry, i didn't get that, can u explain a bit more

Shamon_sha

Hi all.. i am working with a usb datalogger with pic24f controller. I have done with it almost, but need to add internal rtcc to print date and time. Can anyone help me to do it. I tried, but interrupt is not getting. If anyone have experience with RTCC, please let me know

Till

im sorry, i didn't get that, can u explain a bit more

https://en.cppreference.com/w/c/language/object

Anonymous

https://en.cppreference.com/w/c/language/object

ohhhh so basically my struct look likes this: struct { short *wilma[0]; // 8B short *wilma[1]; //8B short fred[0]; //2B (short pad; //2B) short fred[1]; //2B (short pad; //2B) rubble dino; 16B } 16 + 8 + 16 40 BYTES!! THANK YOUU 😭😭

Anonymous

ohhhh so basically my struct look likes this: struct { short *wilma[0]; // 8B short *wilma[1]; //8B short fred[0]; //2B (short pad; //2B) short fred[1]; //2B (short pad; //2B) rubble dino; 16B } 16 + 8 + 16 40 BYTES!! THANK YOUU 😭😭

wrong calculation. sizeof(a[n]) is always n * sizeof(a[0])

Anonymous

ohhhh so basically my struct look likes this: struct { short *wilma[0]; // 8B short *wilma[1]; //8B short fred[0]; //2B (short pad; //2B) short fred[1]; //2B (short pad; //2B) rubble dino; 16B } 16 + 8 + 16 40 BYTES!! THANK YOUU 😭😭

... short fred[0]; //2B short fred[1]; //2B (short pad; //4B) ... 16 + 8 + 16 40 BYTES!!

Anonymous

Hey guys can someone recommend me a good website to practice c and etc?

gg

Any python aspirant?

Anonymous

wrong calculation. sizeof(a[n]) is always n * sizeof(a[0])

n*sizeof(a[0]), 2*sizeof(fred[0]) = 4B yeahh. thank you very much

Anonymous

... short fred[0]; //2B short fred[1]; //2B (short pad; //4B) ... 16 + 8 + 16 40 BYTES!!

no. padding is done for alignment reasons. there is no reason for a padding to exist after 4B

Anonymous

so im understanding this as: the padding bytes will be allocated contiguous rather than inbetween array elements, maybe something like this, [0000] lets say this is a byte, for memory and [xxxx] are the paddings, so itll be like, [0000][0000][xxxx][xxxx] right ? instead of [0000][xxxx][0000][xxxx]

Anonymous

... short fred[0]; //2B short fred[1]; //2B (short pad; //4B) ... 16 + 8 + 16 40 BYTES!!

THANKS a. :')))

Anonymous

so im understanding this as: the padding bytes will be allocated contiguous rather than inbetween array elements, maybe something like this, [0000] lets say this is a byte, for memory and [xxxx] are the paddings, so itll be like, [0000][0000][xxxx][xxxx] right ? instead of [0000][xxxx][0000][xxxx]

i think you should just test the memory

Anonymous

i think you should just test the memory

i really dont know alot about how memory works, i am slowly slowly going in there, ‘test the memory’ idk how to do that but soon, if there's a resource which i should follow that u can suggest, itll be great

Anonymous

so im understanding this as: the padding bytes will be allocated contiguous rather than inbetween array elements, maybe something like this, [0000] lets say this is a byte, for memory and [xxxx] are the paddings, so itll be like, [0000][0000][xxxx][xxxx] right ? instead of [0000][xxxx][0000][xxxx]

while that is true, in most modern PCs 4 bytes should be a boundary. there is no reason for a padding to exist after that.

Anonymous

i really dont know alot about how memory works, i am slowly slowly going in there, ‘test the memory’ idk how to do that but soon, if there's a resource which i should follow that u can suggest, itll be great

idk gdb commands that might help, but Eclipse and CLion both have options to inspect memory

Anonymous

O.o

Anonymous

testing

Anonymous

no no not asking, but ummmmm im just trying to represent bytes

Anonymous

oh. i thought boundaries were at 4 bytes

Anonymous

ye

Anonymous

ye 8 byte boundaries

Anonymous

oh

Anonymous

Any python aspirant?

/warn no, only warns

Anonymous

printf(" \n "); .

Anonymous

#include<stdio.h> int main(){ int n,i,a, j, s,r; printf("enter the number"); for(j=100;j< 500;j++) { i=j/100; r=j % 100; s=r/10; a=j%10; if ((i-s== 1) || (s-i== 1)){ else if ((s-a == 1) || (a-s== 1)){ printf("%d%d%d ",i,s,a ); printf(" \n "); } } }