From: "Marp" <Marp AT 0 DOT 0 DOT 0 DOT 0>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Help with EOF
Date: Sat, 10 Jul 1999 15:28:32 -0400
Organization: Netcom
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References: <37877c8f DOT 2555669 AT news DOT smartnet DOT com DOT sg>
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com


tripleZ <triplez AT singnet DOT com DOT sg> wrote in message
news:37877c8f DOT 2555669 AT news DOT smartnet DOT com DOT sg...
>
> i've got a problem with EOF.. here's the code
>
> <snip>
>
> file = fopen ("records.txt","r");
You should first make sure file isn't null like this:

if(!file)
{
    perror("records.txt");
    return -1;
}

>  while (!EOF(file))

EOF is not a function, it's a preprocessor #define. Use function feof() like
this:

while(!feof(file))

>  {
>   fscanf(file, "%d %d %d\n", n1, n2, n3);
>   if (n3 == key)
>   {
>    g_class = n1;
>    g_student = n2;
>    fclose(file);
>    return 0;
>   }
>   else
>   {
>    fclose(file);
>    return -1;
>   }
>  }
>
> <snip>
>