Trouble Declaring

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  1. #1
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    Trouble Declaring

    Having trouble getting my head around declaring an array of C-strings(which themselves are arrays of chars). Any ideas?

  2. #2
    and the hat of int overfl Salem's Avatar
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    char strings[howmany][howlongeachoneis];

  3. #3
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    charArray1[]
    charArray2[]
    charArray3[]

    words[3]
    words[0] = charArray1
    words[1] = charArray2
    words[2] = charArray3

    (You have to fill in the types.)

    If you wanted to access the 2nd letter of charArray3, you would do this:

    charArray3[1];

    But since words[2] ==charArray3, you can make that direct substitution and write:

    words[2]
    [1]
    Last edited by 7stud; 02-16-2006 at 11:38 AM.

  4. #4
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    Or if you want to dynamically allocate the amount of memory you need for each string, use
    Code:
    char *array1[10];
    
    // allocate however much memory you need with new for each item

  5. #5
    The Richness... Richie T's Avatar
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    here's how i visualise what happens:

    declare char array [5] [10];

    here's what that looks like:

    Code:
        0  1  2  3  4  5  6  7  8  9
       -------------------------------
    0  |  |  |  |  |  |  |  |  |  |  |
       -------------------------------
       -------------------------------
    1  |  |  |  |  |  |  |  |  |  |  |
       -------------------------------
       -------------------------------
    2  |  |  |  | x|  |  |  |  |  |  |
       -------------------------------
       -------------------------------
    3  |  |  |  |  |  |  |  |  |  |  |
       -------------------------------
       -------------------------------
    4  |  |  |  |  |  |  |  |  |  |  |
       -------------------------------
    now cout<<array[2][3];
    will print out the value stored there, which is character x.
    think of that as a co-ordinate system - first comes y-axis, then
    x axis
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  6. #6
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    >> Any ideas?

    Switch to a vector of strings:
    Code:
    std::vector<std::string> myemptydata;
    // or maybe
    std::vector<std::string> tenstringsofdata(10);

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