function

[leechul@~/C_Study]leechul vi 003-functions.c

#include <stdio.h>



int sum(int a, int b);



int main(int argc, char *argv[])

{

            int result;

            result = sum(5,10);

            printf ("result = %d\n",result);

}                           



int sum(int a, int b)

{

            int result;

            result = a + b;

            return result;

}           


[leechul@~/C_Study]leechul gcc 003-functions.c -o 003-functions.o

[leechul@~/C_Study]leechul ./003-functions.o

result = 15