In this function, I am displaying a .txt document to the screen, which works, however, I am trying to read the file document and scan the document for the word EMPTY as I have it saved as a string variable. It should be noted that I am counting the time EMPTY is in the file and later printing the times it was would in the file along with on another thing. My first question is am I doing this correct?
void allSeats(void)
{
int position = 0;
int count = 0;
char gone[6] = "EMPTY";
system("cls");
retry:
fseatArrangement = fopen("airlineSeatingArrangment.txt", "r");
while (fgets(econoAirSeatArrangement, 1000, fseatArrangement) != NULL)
printf(econoAirSeatArrangement);
fclose(fseatArrangement);
while (count < FULL)
{
fgets(econoAirSeatArrangement, 1000, fseatArrangement);
fscanf(fseatArrangement,"%s", &gone);
count++;
}
printf("There are %d seats vacant at the moment\nThere are %d seats with no vacancy at the moment \n",count, FULL-count);
printf("Enter Zero(0) Key to return to menu at anytime.");
scanf("%d", &position);
if (position == 0)
{
system("cls");
menu();
}
else
{
system("cls");
printf("INVALID INPUT! Please try again.\n");
goto retry;
}
system("pause");
return;
}
The main problem is here
fgets(econoAirSeatArrangement, 1000, fseatArrangement);
you have already closed the file pointer using fclose(), and yet, you try to use it. It causes undefined behavior.
That said,
printf(econoAirSeatArrangement); appears wrong. If you do not wish to have any format conversion specification you can stick to puts().fopen(), fgets(), fscanf() etc. for success before using the returned value / scanned value.