Hi all,
I have a question regarding an extern variable.
---test.c
#include <stdio.h>
#include </home/peuceul/debug/test.h>
extern int a;
int print1()
{
printf("value of a in extern is %d\n", a);
int a = 2;
printf("value of a is %d\n", a);
}
int print2()
{
printf("value of a in second method is %d\n", a);
}
int main()
{
print1();
print2();
}---test.h
int a = 0;I am trying to change the value of an extern variable(mainly int a) using print1 method. And in main() I need to call print2 with the changed value of this int a, without passing the "a" as a parameter. I can not figure out how to do it, so far I am using mysql to save the "a" and fetch it later, but I am curious if I can do it in C manner and not using parameter passing to print2 function nor using mysql.
Can anyone point it out?
Thank you
