How actually to use extern
suppose in file 1 i write code..(test_new.c)
#include <stdio.h>
#include<math.h>
int interest_rate =5;
int main()
{
int test = 0;
int t=5;
// cout<<ceil(log2(5));//
// cout<<pow(2,ceil(log2(5)));
getchar();
return 0;
}
In file 2 i write
#include<stdio.h>
#include"test_new.c"
extern int interest_rate;
void fun()
{
interest_rate=6;
}
it works..
now if i make interest_rate as static in c..it also wokrs in file 2..but it
should not...and if i remove the declaration of interest from file 2 it
also works...all this happening becoz i #included test_new.c(file1) in
file2....so i definition comes in a...plz tell how to tell fille 2 to refer
file 1...as by #inlcuded resultsare not as accepted...itz full code coming
in file a...i want that
global variable is accessible in file 2 but for static it shows that itz an
undefined reference....plz provide me code snippet..
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