arrays

This is a discussion on arrays within the C++ Programming forums, part of the General Programming Boards category; i have this array Code: char subcode[CODELENGTH]; say the value JJ123 i also have Code: char subjectcode[MAXSUBJECTS][CODELENGTH]; i have this ...

  1. #1
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    arrays

    i have this array
    Code:
    char subcode[CODELENGTH];
    say the value JJ123

    i also have
    Code:
    char subjectcode[MAXSUBJECTS][CODELENGTH];

    i have this for loop and it doesnt work

    Code:
    inFile>>subcode;
    cout<< "Subject Code" << subcode;
    for(int p=0;p<CODELENGTH;p++)
    {
    subjectcode[MAXSUBJECTS][0+p] = *subcode; 
    cout << subjectcode[0][CODELENGTH];
    }
    can some1 help me please

    also if i enter it all in a 2d array.. is it possible to search it.. and retrieve the first line..

    that is.. supose the array ends up being

    J1234
    J2314
    J1235

    if some1 types J1234 will i be able to search it and retrieve ...

    thankyou
    Last edited by chizzy; 10-30-2002 at 02:09 PM.

  2. #2
    End Of Line Hammer's Avatar
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    Can you post some code, your question is a little unclear.
    When all else fails, read the instructions.
    If you're posting code, use code tags: [code] /* insert code here */ [/code]

  3. #3
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    array2 is defined as char, not char *.

    array2[0][1 + i] = array[0];

    Kuphryn

  4. #4
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    i have add more code aboe

    thankx

  5. #5
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    Code:
    //obtain subcode from file
    inFile>>subcode;
    //verify subcode read in correctly
    cout<< "Subject Code" << subcode;
    
    //now read in subcode to subjectcode, one char at a time
    for(int r = 0; r < MAXSUBJECTS; r++)//determines which subcode in subjectcode will be the target for storage
    {
      //loop to read in one char at a time from file data to subjectcode.
      for(int p=0;p<CODELENGTH;p++)
      {
         subjectcode[r][p] = subcode[p]; 
      }
    
         //null terminate current subjectcode after all pertinent char
         // have been copied to it
          subjectcode[r][p] = '\0';
    
         //then prove you copied it correctly
         cout << subjectcode[r];
    }
    to determine if a given subcode already exists in subjectcode use a loop to compare each subcode already in subjectcode to the desired subcode using strcmp().

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