Passing string length to another file

[JFonseka]

Suppose I have:

len = strlen(command)

and in another file, I have a function

 int (char array[]) {

How do I pass that strlen, without adding extra parameters to the function? I first did:

int (char array[len]) {

But that gave me undeclared variable error or something,

I was thinking of passing the strlen into a struct in the other file, but I'm not entirely sure on how to do that.

[Elysia]

Why not add an extra argument? That's the best and easiest way to do it.
Otherwise you can create a struct and pass as argument.
Avoid global variables.

[JFonseka]

Thanks, but I don't know how to pass it into a struct from a different file.

Also, I just integrated both the files into one, less hassle

[Elysia]

You might do something like this:

A.h:

struct mystruct
{
    /* ... */
};

A.c:
#include "A.h"
void myfunc(struct mystruct* p)
{
    /* ... */
}

B.c:
#include "A.h"
int main(void)
{
    /* ... */
    struct mystruct mys;
    myfunc(&mys);
    /* ... */
}

[iMalc]

You can either pass the length, or you can simply call strlen inside the function.

[JFonseka]

Thanks for the advice, will try it =)