From: kezman AT nOsPaMbigfoot DOT com (Kieran Farrell)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: best way to read selected data from a file?
Message-ID: <3813ec95.19322590@news.pasteur.dialix.com.au>
References: <3812949e_2 AT news DOT chariot DOT net DOT au>
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Date: Mon, 25 Oct 1999 05:57:19 GMT
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

I totally confused my lecturer by understanding pointers and
struggling with filestreams, don't be disparraged it's not an easy
concept. Well heres your answer.

There are many ways to do it, however no book I've ever read has given
the answer. This is the way I'd do it.

struct MyStuff
{
    int Number;
};

int ReadLine(struct MyStuff *Meep, FILE *fp, int Line)
{
    struct MyStuff Temp;
    int i = 0, RetVal = -1;

    rewind(fp); // Make sure you know where your file pointer is!!!
    while( i != (Line-1) || !feof(fp)) /* Must not go past EOF */
    {
        fscanf(fp, "%d", &Temp.Number);
        i++;
        if(feof(fp))
        {
            RetVal = 0;
        }
        
    }
    if( RetVal = -1 )
    {
        /* OK you are now at the line you want to read */
        fscanf(fp, "%d", &Meep->Number);
    }
    return RetVal; /* Returns 0 if unsucsesful, otherwise -1 */
}