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Help using functions on arrays of structures

Discussion in 'C' started by bigbearbooth, Dec 4, 2007.

  1. bigbearbooth

    bigbearbooth New Member

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    Hi everybody!

    I'm new to programming and I've come across a problem when i attempt to do operations on structures.

    The following line is an example:

    D = (sumofweights * sum(read_data[].xsq)) - pow(sum(read_data.x), 2);

    where the function sum() is supposed to sum all the members xsq in the array of a structure:

    double sum(double array[]){
    double result = 0;
    for(int j = 0; j <= counter; ++j){ /* counter is a variable that updates everytime an . element is added to the structure */
    result = result + array[j];
    }
    return(result);
    }

    I'm sure there is a syntax error in there or that I'm attempting to do something that isn't allowed, but I cannot for the life of me figure out what it is.

    Any help would be very much appreciated.

    Cheers,
    BBB :)
     
  2. Salem

    Salem New Member

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    Occupation:
    Please don't PM me for 1:1 support.
    Can you post the structure which is used to declare your read_data ?
     

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