undefined reference

[mr_snurf]

Hello,
I'm having a similar problem. I am trying to write some complex code, but was able to reproduce my compiler error in a simplified version of the program.
The issue here is that I am using templates... is there something obvious I am missing here? I've posted my code and compile message below.
Thanks!

test.h:
1 #ifndef TEST_H
2 #define TEST_H
3
4 template <class T>
5 class test
6 {
7 public:
8 test();
9 test( T val );
10 T get_thing();
11
12 private:
13 T thing;
14 };
15
16 #endif


test.cc:
1 #include "test.h"
2
3 template <class T>
4 test<T>::test()
5 {
6 }
7
8 template <class T>
9 test<T>::test( T val )
10 {
11 thing = val;
12 }
13
14 template <class T>
15 T test<T>::get_thing()
16 {
17 return thing;
18 }
19


main.cc:
1 #include <iostream>
2 #include "test.h"
3
4 using namespace std;
5
6 int main()
7 {
8 test<int> t = test<int>( 5 );
9 cout << t.get_thing() << endl;
10 return 0;
11 }


g++ test.cc main.cc -o test
/tmp/cczsY5Ba.o: In function `main':
main.cc.text+0x92): undefined reference to `test<int>::test(int)'
main.cc.text+0x9d): undefined reference to `test<int>::get_thing()'
collect2: ld returned 1 exit status
make: *** [all] Error 1

[WuNMOjTIQanXWBcH]

The issue here is that I am using templates... is there something obvious I am missing here? I've posted my code and compile message below. […]
test.h: […]
test.cc: […]
main.cc: […]

g++ test.cc main.cc -o test
/tmp/cczsY5Ba.o: In function `main':
main.cc:(.text+0x92): undefined reference to `test<int>::test(int)'
main.cc:(.text+0x9d): undefined reference to `test<int>::get_thing()'
collect2: ld returned 1 exit status
make: *** [all] Error 1

GCC is known to have problems when it comes to compiling classes with separated declaration and instantiation. A good description of the problem and possible solutions can be found at:

• CMSC 214 – Computer Science Ⅱ – Spring 2003
• GCC documentation – 6. Extensions to the C++ language – 6.5 Where's the Template?

Good keywords for searching for further explanations are:
GCC, template, class, instantiation

P.S.:
Please use CODE-tags. Enhances readability tenfold.