Scope Resolution in C

Hi
  Do u wanna use a variable declared in one function in another function??? This is not allowed. To do this u need to have the variable defined as a global variable.
  Please explain ur problem statement a bit.

Regards
Ramesh

Hmmm,

The Scope Resolution Operator (::) is a C++ construct - you can't do it in C...

So, what exactly are you trying to do?

In C, you can have a global variable, or pass it as a function parameter...

Declaring it as a global variable is the easiest way.  However, that allows all modules to change its value.

If you want to do data encapsulation, you can declare it as a static and provide an access function that will return its value.  Needless to say, that access function shouldn't be static.

must agree with gj62 and underline that the scope operator can really only be used in c++ and that the easiest way you can use that same value your searching for is by either making it global or declaring a pointer to it i guess...

Hi,

For the above problem, I have also used global variable (declared as extern) in one module and I have used that variable in another module, but that doesn't work either. I will show the coding for that below.

Program name: program1.c

....
extern int var1;

void Truncate(void) {
.....
var1 = 1;
....
}
...

Program name: program2.c
...
void Transpose(void) {
....
int a;
a = var1;
....
}

This also doesn't work. pl. give me some suggestions.

Note:
I am compiling the programs and making exe with "gcc".

thanks

Hemaraj123