help with the basic's

Howdy,

I am just learning the c languge from Sam's Teach yourself C.
I am on to Understanding Arrays, there is a question I had that was not answered in the book.

The question was write a program to display the total memory space taken by the array(I understand this part), what I was wondering if you had a array of floating numbers to print the array out would I use a for loop or a while loop, because I cant figure out how to get it to work with a for loop, If i change i to a double or float it still wont work here is my code, And thank you all for your time and your suggestions.

Code:

---

#include <stdio.h>

main() {
   
    double list_data[6] = {
            1.12345,
            2.12345,
            3.12345,
            4.12345,
            5.12345,
            6.12345};
           
    int i, size;
    size = sizeof(list_data);
    printf("The size of list_data is %d\n", size);
        for (i=0; i<list_data[i]; i++)
          printf(" %.5f\n", list_data[i]);
             
       
           
    return (0);
}

---

So the normal structure for a for loop is:

Code:

---

    for(i=0; i<ARRAY_SIZE; ++i)

---

in your case array size is 6.

Similarly to get the ith element in the array for printing, you use list_data[i]

If you know how to use while loop than is simple to use a for loop instead of the while loop. The similarities between this 2 loop are this:
*while loop:

Code:

---

int contor = 0;

while(cnd) {
/* do smthg */
contor++;
}

---

*for loop:

Code:

---

int contor;

for (contor = 0; cnd; contor++) {
/* do smthg */
}

---

The 2 of them are equivalent.