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End of file controlled loop

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Join Date: Oct 2006

Posts: 6

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SammyHasibi SammyHasibi is offline

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End of file controlled loop

Oct 9th, 2006

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 C Syntax (Toggle Plain Text) 
{
    FILE *scorefile;
    int score;
    int temp;
 
    scorefile = fopen("scores.txt","r");
    if (scorefile == NULL)
       printf("Error opening input file\n");
    else
        {
        temp = 0;
        while (feof(scorefile) <= 0)
        {
        fscanf(scorefile,"%d",&score);
        temp = temp +1;
        }
    }
    fclose(scorefile);
    printf("Temp = %d\n",temp);
    system("pause");
    return(0);
}
{
    FILE *scorefile;
    int score;
    int temp;
 
    scorefile = fopen("scores.txt","r");
    if (scorefile == NULL)
       printf("Error opening input file\n");
    else
        {
        temp = 0;
        while (feof(scorefile) <= 0)
        {
        fscanf(scorefile,"%d",&score);
        temp = temp +1;
        }
    }
    fclose(scorefile);
    printf("Temp = %d\n",temp);
    system("pause");
    return(0);
}

The program counts the number of terms in the file "scores.txt".
An end-of-file-controlled loop is used to read values until the end of file is encountered.
This sort of loop uses the fact that a file goes into the fail state when you try to read a
data value beyond the end of a file to control it.
The value of "temp" will be 6 at the end of the program but it was 0 at the beginning. The
value of temp is determined by its placement in the end-of-file controlled loop whereby
it loops once for every individual term it encounters and adds the value of 1 for
each. After each iteration it checks with the condition enclosed within the parentheses
that "feof(scorefile) . . ."
Is there a better, more economical way of saying this (the file has 6 values within it)?
Thanks for viewing