Hello:

There's probably a really simple reason why this program does't work the way
I want it to.  Maybe you could tell me why my last call to printf, the one
which is supposed to print the largest integer entered, is always skipped?

Thank You,

mystified

--------------------------------------------

#include <stdio.h>

int main() {

int next = 0;
int latest = 0;
int largest = 0;

printf("Enter a stream of integers: \n");
printf("Press CTRL-Z to quit.\n");

while (scanf("%d", &next)!= EOF) {
  if (next > latest) {
   largest = next;
   latest = next;
   next = 0; }
   }

printf("The largest integer is: %d\n", largest); ----->  this line is always
skipped
return 0;

: Hello:

: There's probably a really simple reason why this program does't work the way
: I want it to.  Maybe you could tell me why my last call to printf, the one
: which is supposed to print the largest integer entered, is always skipped?

: Thank You,

: mystified

: --------------------------------------------

: #include <stdio.h>

: int main() {

: int next = 0;
: int latest = 0;
: int largest = 0;

: printf("Enter a stream of integers: \n");
: printf("Press CTRL-Z to quit.\n");

: while (scanf("%d", &next)!= EOF) {
:   if (next > latest) {
:    largest = next;
:    latest = next;
:    next = 0; }
:    }

: printf("The largest integer is: %d\n", largest); ----->  this line is always
: skipped
: return 0;
: }

This seems to work; the only thing I can think of is that your
compiler is trapping on the ^Z, so that the final lines aren't
executed.

Will

   while (scanf("%d", &next) == 1) {

which will run while scanf() manages to read a value in.  The program
will stop if a letter is typed, or it hits EOF.

:
:> while (scanf("%d", &next)!= EOF) {
:
:You're testing the result of scanf() incorrectly.  scanf() returns the
:number of things it managed to match in the format string, so in this
:case you want to say:
:
:   while (scanf("%d", &next) == 1) {

Mark's advice is sound, although somewhat misleading, since scanf
does "return the value of the macro EOF if an input error occurs
before any conversion."  Since it almost always more useful to test
for conversion of the right number of input items, it is rare that a
test against EOF is seen.