Problem understanding function in C

[DutchDude]

hello,
I have problem with a function declaration, in following program the main section initializes k to 0. The function f is known as k <4. As increments each time, this function will be performed 4 times. My only problem is that I have a printf ( "% ld", i) at the beginning of the loop and the PC gives me the value 0 so the loop should never execute (j <= i)!. Yet it runs 4 times.

# include <stdio.h> 
# include <stdlib.h> 
float f (int i) 
( 


int j = 1, k = 1; 

while (j <= i) 
( 

k = k * j; 
j + +; 
) 
return k; 
) 
int main (int argc, char * argv) 
(Int i; 
int k = 0; 
do 
( 
printf ( "f (% i) =% f \ n", k, f (k)); 
k + +; 
) 
while (k <4); 


system ( "PAUSE"); 
return 0; 
)

[Katty]

 printf ( "f (% i) =% f \ n", k, f (k));

or it Should be:

printf ( "f (% Id) =% Id \ n", i, k, f (k));

[opaper]

The function f is known as k <4. As increments each time, this function will be performed 4 times. My only problem is that I have a printf ( "% ld", i) at the beginning of the loop and the PC gives me the value 0 so the loop should never execute (j <= i)!. Yet it runs 4 times.

your function does not return a decimal number in integer that should be used, especially as you refer k, which is an integer variable. For your function by itself, at first sight of the factorial function.