converting char to string

This is a discussion on converting char to string within the C++ Programming forums, part of the General Programming Boards category; Hey all, I'm stumped! How do I convert char X to std::string sob (see below)? Code: #include <iostream.h> #include <stdlib.h> ...

  1. #1
    Registered User deleeuw's Avatar
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    converting char to string

    Hey all,
    I'm stumped! How do I convert
    char X to std::string sob (see below)?


    Code:
    #include <iostream.h>
    #include <stdlib.h>
    #include <stdio.h>
    #include <time.h>
    #include <string.h>
    #include <fstream.h>
    
    main(){
    FILE *OB2;
    char x[5];
    cin>>x[5];
    obCheck:
    std::fstream OB;
    OB.open("./oob", std::ios::in);
    std::string sob(x);
    while (!OB.eof()){
    cout<<sob<<endl;
    std::getline(OB, sob);
    }
    OB.close();
    cout<<sob<<endl;
    if (x=sob){
    cout<<"Unit name already used. Please enter another name"<<endl;
    cin>>x;
    goto obCheck;
    }
    
    else{
    }
    }
    THX
    Deum solum fidentia est

  2. #2
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    first of all, take the .h off from the headers.

    Code:
    cin >> x[5];
    should be
    Code:
    std::cin >> x;
    Are you trying to compare x and sob?

  3. #3
    Registered User deleeuw's Avatar
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    yes,
    I'm trying to compare x to sob.

    Thx`
    Deum solum fidentia est

  4. #4
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    Code:
    if (x=sob){
    ... what are you trying to do? are you trying to compare them? or are you assigning sob to x?

    from your use of the if statement i'd say your comparing them... in this case it should be if(x==sob) and i would declare x as a string or a pointer to a char so..

    string x = "whatever";
    or
    char *y = "whatever";

    cout<<x; and cout<<y; will both print "whatever" i dunno if that helps, caues i'm confused about what your doing exactly.

  5. #5
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    Since x is a c-string, and sob is a std::string, you could compare them as such:

    Code:
    if(strcmp(x, sob.c_str()) == 0) {
      // do stuff
    }

  6. #6
    Registered User deleeuw's Avatar
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    OK--Stupid Question:
    what is a "c_string"?
    Deum solum fidentia est

  7. #7
    lyx
    lyx is offline
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    A C string is but a simple null-terminated string, a array of characters terminated with the character null (the one with integer-value 0). In C++, most people use the string class of the standard library. (but I don't...)

  8. #8
    Registered User deleeuw's Avatar
    Join Date
    Aug 2001
    Posts
    31
    Hey all,
    Thanks for everyone's help.
    I finally got the thing working:
    it reads and appends the list fine.

    Thanks again!
    Deum solum fidentia est

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