I don't know how to use std::string?

[unholysavagery]

Well I wanted to just convert a int to a char* but everywhere I look they tell you that you should use a std::string. I found a few samples but none work, could someone show me how to convert a int to a char* the right way and explain whats going on?

[programmerinprogress]

EDIT: just re-read your post, and my explanation was rubbish, so heres a better one

use stringstream <sstream> to stream your integer value into the stringstream buffer, into a string like this

Code: Select all

#include<iostream>
#include<sstream>
#include<string> 

using namespace std; 

int main()
{
  string TheString; 
  stringstream TheStream; 
  int TheInt = 5; 

  TheStream << TheInt;  // stream the integers into the stringstream  (changed this to <<)
  TheString = TheStream.str() // convert the stream into  string (I fixed this)


return 0; 
}

EDITED: I didn't go with my gut and use the << operator like I should have, and I used c_str() instead of str()

[Falco Girgis]

Code: Select all

TheString = TheStream.c_str() // convert the stream into  string 

Will that work? c_str() returns a const char*, not a string if it's a "string" object. I haven't used stringstream objects. Is it different?

[programmerinprogress]

oh no!

one minor correction, its not c_str(), it's just str()

thanks for pointing that one out, I havent used it in a while

oh and the arrows have to be pointing the way you would do cout (<<) not cin (>>)

my bad

[unholysavagery]

I found out I was doing it right from the start but had a problem with something else.

[avansc]

jesus, what happened do atoi, itoa, atof ... etc... see this is why you young people need to learn some C manners.

[programmerinprogress]

jesus, what happened do atoi, itoa, atof ... etc... see this is why you young people need to learn some C manners.

they (as in I ) don't call me programmerinprogress for nothing

[mllarson]

jesus, what happened do atoi, itoa, atof ... etc... see this is why you young people need to learn some C manners.

they (as in I ) don't call me programmerinprogress for nothing

So when you're a master are you going to be known as "programmerprogresscomplete"?

[programmerinprogress]

see that's the catch, you can never be the best when it comes to programming, because things are always improving, and even the best programmer makes mistakes from time to time, thus the programmerinprogress alias is here to stay

[cypher1554R]

see that's the catch, you can never be the best when it comes to programming, because things are always improving, and even the best programmer makes mistakes from time to time, thus the programmerinprogress alias is here to stay

Son, mother earth will take you if you like it or not.

Program "programmerinprogress" exited with code 0x0000

what then?

When the virtual memory of("You") is released, and you return to the source of unlimited intelligence.. Everyone's pretty much complete there. Everyone is ONE Take the red pill, and shut up.. I shoved the blue up my ass, cry over it if you want.

[avansc]

see that's the catch, you can never be the best when it comes to programming, because things are always improving, and even the best programmer makes mistakes from time to time, thus the programmerinprogress alias is here to stay

Son, mother earth will take you if you like it or not.

Program "programmerinprogress" exited with code 0x0000

what then?

When the virtual memory of("You") is released, and you return to the source of unlimited intelligence.. Everyone's pretty much complete there. Everyone is ONE Take the red pill, and shut up.. I shoved the blue up my ass, cry over it if you want.

wtf...

[cypher1554R]

wtf...

read my sig..

[avansc]

wtf...

read my sig..

lolz. i was about to ask your for some of your hallucinogens.

[Arce]

wtf...

read my sig..

lolz. i was about to ask your for some of your hallucinogens.

XD, I loled.

[dandymcgee]

Take the red pill, and shut up.. I shoved the blue up my ass, cry over it if you want.