[src]Global variable not work

[Elzza 0]

I wrote a function that uses a global variable, but this variable isn't working properly.

 

 

A function that reads / records the number to this variable, not always doing it properly, why?

 

test.h

int global_var[3];  // Global Variable

class test
{
public:
   void write(int nmb);
   int read();
};

extern test testt;

test.cpp

#include "test.h"

...

void test::write(int nmb)
{
   global_var[0] = nmb;
}
int test::read()
{
   return global_var[0];
}

questlua_pc.cpp

...
#include "test.h"
...

test testt;

int pc_test_func_write(lua_State* L)
{
   testt.write(lua_tonumber(L,1));
   return 1;
}

int pc_test_func_read(lua_State* L)
{
   lua_pushnumber(L, testt.read());
   return 1;
}

...

{"test_func_write",		pc_test_func_write	},
{"test_func_read",		pc_test_func_read	},

This is a sample code.

 

How can I fix it?

[martysama0134 7081]

smth.h

extern int smth[3];

smth.cpp

int smth[3] = {1,2,3};

I don't like such awful thing:

extern test testt;

Just, implement the constructor inside smth.cpp and also give a DEFAULT value to smth[3]; (or maybe include the array inside the class)

You're not giving information about what kind of error you got and what are you trying to do with such "implementation".

[Elzza 0]

Just, implement the constructor inside smth.cpp and also give a DEFAULT value to smth[3]; (or maybe include the array inside the class)

In my full code, I've done it earlier, but error is still.

edited code:

 

test.h

class test
{
public:
   int global_var[3];  // Global Variable

   test();
   void write(int nmb);
   int read();
};
 
extern test testt;

test.cpp

#include "test.h"
 
...
test::test()
{
   global_var[0] = 0;
   global_var[1] = 0;
   global_var[2] = 0;
} 
void test::write(int nmb)
{
   global_var[0] = nmb;
}
int test::read()
{
   return global_var[0];
}

smth.h

extern int smth[3];

smth.cpp

int smth[3] = {1,2,3};

I don't like such awful thing:

extern test testt;

 

 

I did it because I want to use only one class object in different functions.

How can I do it differently?