how to call a function of c++ file in .m file?

Question

I have a header file test.h

 #ifndef __visibilty_test__test__

 #define __visibilty_test__test__

 #include <iostream>

using namespace std;

class test{

public:

    void print(string s);
};

 #endif

and test.mm

 #include "test.h"

using namespace std;


void test:: print(string s){

    cout << s << endl;

}

now I want to call print function in my AppDelegate.m file in an iOS Application. Can anyone help me?

Thanks in advance

possible duplicate of [Problem when #import C++ Header File in iPhone/iPad Project](http://stackoverflow.com/questions/3890552/problem-when-import-c-header-file-in-iphone-ipad-project) — Parag Bafna, Jun 06 '13 at 07:20

score 2 · Answer 1 · edited Jun 06 '13 at 08:23

2

Rename AppDelegate.m to AppDelegate.mm.
Call the method as you would in C++:
```
test t;
t.print("Hello");
```

edited Jun 06 '13 at 08:23

answered Jun 06 '13 at 07:09

trojanfoe

120,358
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(Do not use lists, neither numbered nor bullets, combined with code formatting. SO screws it up.) – Hermann Klecker Jun 06 '13 at 08:19
Thanks Sir, but now i am getting this error "iostream" file not found" – Sumit Kumar Jun 06 '13 at 08:45

score 0 · Answer 2 · answered Jun 06 '13 at 07:19

0

Your object:

#include <iostream>

 using namespace std;

 class test
 {
     public:
         void print(string s)
         {
             cout << s << endl;
         }
 };

call from mm file

test *t = new test;
t->print("hello");

answered Jun 06 '13 at 07:19

Jabson

1,585
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how to call a function of c++ file in .m file?

2 Answers2