External Class w/ namespace error

[surrealife1]

I have been trying to link files and headers with classes, but dev-cpp keeps throwing an error concerning lines in the namespace std

I have three simple files to test use of an external class:

test.h

#ifndef TEST_H
#define TEST_H

class cl{
   int i;
   public:
     void set(int si);
     int get();
}

#endif 

test.cpp

#include <iostream>

void cl::set(int si) {
   i=si;
}

int cl::get(){
   return i;
}

main.cpp

#include "test.h"
#include <iostream>
using namespace std;

class cl;
cl c;

int main() {
   c.set(1);
   cout << c.get();
   cin.get();
   return 1;
}

and when this compiles, I get 5 namespace std source file errors (in c++config.h) and 1 makefile.win error.

I am using Dev-C++ for lack of better compiler, is this a compiler or user error?

Although there is lots of material about external files, none I've found address my issue . . .

[Jikax]

Delete "class cl" in main.cpp

And add a ';' right after } in test.h. (this is probably causing the weird errors)

And add #include "test.h" in test.cpp

[webJose]

Everything looks correct except line #5 in main.cpp. It must be deleted.

[clanmjc]

For what it's worth you also don't need #include <iostream> in test.cpp

[surrealife1]

Thanks Jikax, that worked, I'll see if something similar's my problem in my bigger project (almost 400 lines of code).