Need help in explaining passing an array to a function

Please refer to the following code:

Code:

---

#include <stdio.h>

#define MAX 10

int array[MAX+1], count;

int largest(int num_array[]);

int main( void )
{
    for (count = 0; count < MAX; count++)
    {
        printf("Enter an integer value: ");
        scanf("%d", &array[count]);

        if ( array[count] == 0 )
            count = MAX;       
    }
    array[MAX] = 0;

    printf("\n\nLargest value = %d\n", largest(array));

    return 0;
}

int largest(int num_array[])
{
    int count, biggest = -12000;

    for ( count = 0; num_array[count] != 0; count++)
    {
        if (num_array[count] > biggest)
            biggest = num_array[count];
    }

    return biggest;
}

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Can anybody please explain how the for loop at the largest() function searches for the largest number entered in the array?

Thanks.

Global variables are initialised to 0 and the last element of the array is preserved as 0 (note that this is means that the user may not enter 0, so it appears to be flawed program)

The for loop goes through the array until the 0 is found, replacing the variable "biggest" with any number it finds that is bigger than the current value in " biggest"

I think that the program should either pass a parameter of the array size, or make use of the define MAX.

Personally I find the random function very helpful when working with integer arrays and trying to understand them. I second Click_here's answer and recommendation. Have a look at this code, play around with the SIZE and RAND symbolic constants and see what it outputs.

Code:

---

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

#define SIZE 25
#define RAND 251

int find_largest(int*, int);

int main(void){

  srand(time(NULL));
  int storage[SIZE];

  int i;
  int j;
  printf("The contents of the array: ");
  for(i=0;i<SIZE; i++){
      j =(rand() % RAND );
      storage[i] = j;
      printf("%2.2d...\n", *(storage + i) );
  }
 
  printf("\nFinally the largest int is %2.2d...\n", find_largest(storage, SIZE) );
 
  return 0;
}

int find_largest(int* the_array, int elements){
 
  int cur;
  int largest;
  largest = the_array[0];
  printf("Initially the largest is %2.2d..\n", largest);

  for(cur = 1; cur < elements; cur++){
      if(the_array[cur] > largest){
        largest = the_array[cur];
        printf("The largest is now %2.2d...\n", largest);
      }
  }
 
  return largest;

}

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