Computer Science 215
                               Quiz 3      Name ______________________

1.  If a C program is to read from the standard input
    using fscan(stdin, "%d", &c);

    a. The program must contain a  b. The program must contain a
       FILE *stdin;                   FILE stdin;
       declaration.                   declaration.

    c. The program must NOT
       declare stdin because it
       must be predeclared in
       stdio.h

2. Which best characterizes the action taken when reading
   a file with fscanf() and with fgetc()

   a. fscanf() may consume multiple     b.  both fscanf() and fgetc()
      bytes from the file in a single       consume exactly one byte
      call, but a call to fgetc() will      per call.
      consume at most 1 byte.

   c. both fscanf() and fgetc() consume
      multiple bytes per call.

3.  The fgets() function

    a. reads a single byte from     b. always reads a specified number
       a file                          of bytes from a file

    c. stops reading when it finds  d. stops reading when it finds a
       a '\n' newline character or     null character or fills the
       fills the specified buffer      specified buffer space.
       space.

4. Consider the following program fragment:

       unsigned int c;
       c = fgetc(stdin);
       fprintf(stdout, "%d\n", c);

   Now suppose I run the program and type number 3 followed
   by a ctl-d (EOF).  The value printed on my screen will
   be: (Hint: the ASCII encoding of the character '3' is 0x33 = 51.)

   a. 3                             b. 51

   c. c                             d. \n

5. Suppose the fputs() function is called as follows:

   fputs(buf, stdout);

   Which best describes how the function will operate.

   a. A single byte stored at location   b. The value "buf" will be interpreted
      buf will be sent to stdout            as a pointer and whatever byte it
                                            points to will be sent to stdout.

   c. "buf" will be viewed as a pointer  d. "buf" will be viewed as a pointer
      and bytes starting at the location    and bytes starting at the location
      to which it points will be sent       to which it points will be sent
      to stdout until a \n (newline is      to stdout until a NULL (byte having
      found)                                the value 0 is found)