[c++] How to Read text from a specific line in c++

Question

hey y'all. I'm trying to read data from a txt file which has data like:
> chandler M bing
data analyst
nyc
22-22-22
central perk, Brooklyn. <
when I use the code which I've mentioned, it only reads data like:
> chandler
data
nyc
22-22-22
central <

what can I do here? please and thanks for your time.

https://code.sololearn.com/cgABfKJ15vNa/?ref=app

Answer 1

https://code.sololearn.com/cHm2F5888Iwn/?ref=app

Heres the code, corrected.
Just did a few changes...

And yes, change the paths of the file to serialname only...
Remove the "/storage/emulated/...." + part and rename that to serialname.c_str() ;

Answer 2

And then if suppose the file object is :
fin...

Do you read the data like this?:

string a;
GotoLine(fin,2);
fin>>a;

or

string a;
GotoLine(fin,2);
getline(fin,a);

???

Answer 3

Where are you recieving input in your code?
I cant find that.

Have you tried using getline()?

Answer 4

@anonymous
But, GotoLine doesn't have anything to read!

It just ignores the rest of the data till the point.
Then what does it use to read?

Answer 5

Maybe its the return file part...

I think you should rephrase the function to :

string GotoLine(std::fstream& file, unsigned int num)
{
string st;
file.seekg(std::ios::beg);
for(int i=0; i < num - 1; ++i)
{
file.ignore(std::numeric_limits <std::streamsize>::max(),'\n');
}
getline(file,st);
return st;
}

Answer 6

please help me out here

Answer 7

@anonymous

Try using my function like this:
cout<<"xyz is - "<<GotoLine(file,0);

Or your own function like this:
string a;
GotoLine(file,0);
cout<<"xyz is - ";
getline(file,a);
cout<<a;

Answer 8

Send me the entire code...
Ill have to check every part...

Whats the problem now?
Same as before?
Or something new?

Answer 9

@kinshuk this is just a function, original code is too big so I can't post it. I call output like:
GotoLine();

Answer 10

@kinshuk i do something like:

cout<<"xyz is:"<<endl;
GotoLine(file,2);

Answer 11

@kinshuk no mate still same result.
i copy pasted the function as it is and called it in main like:
gotoline(file,2);
cout<<"xyz is...... "<<endl;
string line2;
file>>line2;
cout<<line2;
cout <<endl;

Answer 12

@anonymous

Happy to help... 😊

Answer 13

nope ;_; what should i do now?

Answer 14

https://code.sololearn.com/cRMMCXpSiGgf/?ref=app

Answer 15

@kinshuk here's the entire code

Answer 16

@kinshuk holy shitttt it's working 😭 thanks alot bro really appreciate that!