delimiting string

This is a discussion on delimiting string within the C++ Programming forums, part of the General Programming Boards category; Hi, I have a string array. In this string array for example if i get teststring[0] out it returns me ...

  1. #1
    Registered User
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    Nov 2007
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    Question delimiting string

    Hi,

    I have a string array. In this string array for example if i get teststring[0] out it returns me "this is a test string".

    with this string its delimited by white spaces. But i am having trouble to delimit them into "this" "is" "a" "test" "string".

    i tried using the following codes but char mystring[a] does not accept in the string returned from teststring[0].
    Code:
    string a = teststring[0];
    char mystring[] = a;
    char *delim = " "; // only blank
    char *token;
    
    token = strtok(mystring, delim);
    
    while (token !=NULL)
    {
    //compare ... (strcmp (token,"and") )
    //continue loop if equal
    string s = token;
    token = strtok(NULL,delim);
    cout << "the string token is " << s<<endl;
    }
    Is there any other better way to delimit the strings in my string array?? please help beeen figuring this for long but cant seem to find a solution...

  2. #2
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    Code:
    std::string str = "this is a string";
    std::string tmp;
    while(str >> tmp)
        std::cout << tmp;

  3. #3
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    i tried the codes but it cant work? any suggestion what the error might be due to?

    Code:
        string str = "this is a string";
        string tmp;
        while(str >> tmp)
        cout << tmp;

  4. #4
    C++ Witch laserlight's Avatar
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    How does it not work?
    Quote Originally Posted by Bjarne Stroustrup (2000-10-14)
    I get maybe two dozen requests for help with some sort of programming or design problem every day. Most have more sense than to send me hundreds of lines of code. If they do, I ask them to find the smallest example that exhibits the problem and send me that. Mostly, they then find the error themselves. "Finding the smallest program that demonstrates the error" is a powerful debugging tool.
    Look up a C++ Reference and learn How To Ask Questions The Smart Way

  5. #5
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    Is "operator>>" defined for string objects? I doubt it.

    If you want to use the ">>" operator, try:
    Code:
    #include <sstream>
    #include <iostream>
    
    int main()
    {
      std::istringstream str("This is a string");
      std::string tmp;
      while(str >> tmp)
        std::cout << tmp << std::endl;
    }

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