strings

This is a discussion on strings within the C++ Programming forums, part of the General Programming Boards category; look at my code, what is held in name[7]? a null? or random information? for example,,,how would i get it ...

  1. #1
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    Aug 2005
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    strings

    look at my code,
    what is held in name[7]? a null? or random information?
    for example,,,how would i get it to print letter by letter till it reachs the end of my name , rodrigo. ? without directly telling it to stop at name[6]?
    Code:
    #include <string>
    #include <iostream>
    #include <conio.h>
    using namespace std;
    int main()
    {
         string name("rodrigo");
         cout << name[7]; 
         getch();
         }
    i tried this to find out what name[7] was holding but prints nothing.
    -
    i have tried this but i have no idea what i was doing,, lol
    Code:
    #include <string>
    #include <iostream>
    #include <conio.h>
    using namespace std;
    int main()
    {
         string name("rodrigo");
         for(int x=0; x!=NULL;x++){
         cout << name[x]; 
         endl;
         
         }
         getch();
         }
    Last edited by rodrigorules; 06-07-2006 at 07:36 PM.

  2. #2
    Moderately Rabid Decrypt's Avatar
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    The string class has a member function that returns the length of the string. use string::size() in a for loop:
    Code:
    string name = "rodrigo";
    for (string::size_type i = 0; i != name.size(); ++i)
    {
      cout << name[i] << endl;
    }
    There is a difference between tedious and difficult.

  3. #3
    Registered User whiteflags's Avatar
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    In yourt first example you forgot that counting strts at zero in programming. So the last letter in "rodrigo" is
    name[6].

  4. #4
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    one more question since i have thread already open

    Code:
    #include <string>
    #include <iostream>
    #include <conio.h>
    using namespace std;
    int main()
    {
         string name("rodrigo");
         for(int x=0; x!=name.size();++x){
         cout << name[x]; 
         
         endl; /*putting this endl; makes my program not compile? why?*/
         
         }
         getch();
         }

  5. #5
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    Quote Originally Posted by citizen
    In yourt first example you forgot that counting strts at zero in programming. So the last letter in "rodrigo" is
    name[6].
    ya i know, i was trying to find out what is held in name[7] since rodrigo stops at name[6]

  6. #6
    For Narnia! Sentral's Avatar
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    endl is used at the end of cout statements to make a new line. For example:
    Code:
    cout << "HELLO" << endl;
    You can also use:
    Code:
    cout << "HELLO\n";

  7. #7
    Registered User
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    Quote Originally Posted by Sentral
    endl is used at the end of cout statements to make a new line. For example:
    Code:
    cout << "HELLO" << endl;
    You can also use:
    Code:
    cout << "HELLO\n";
    Or you could use plain
    Code:
    cout<<endl;
    OR cout<<"/n";
    The first is suggested since it also clears the stream

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