linking template classes

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1 total messages Started by Hans Juergen Thoennissen Tue, 08 Sep 1992 11:57

#223

Author: Hans Juergen Thoennissen
Date: Tue, 08 Sep 1992 11:57

53 lines
1469 bytes

Hello,

this is my first posting in the usenet so please sorry for choosing the wrong groups ..... but I need help !!!

I have a problem with the GNU C++ V2.1 Compiler on my SPARCstation SLC, using  sunos4.1.1 !!!

The problem is the following:

FILE1:         foo_test.cc

#include "foo.h"

main() {
	Array<int> ALF;
}

FILE2:       foo.h

template <class Typ>
class Array {
public:   Array() {Init();}
private: void Init();
};

FILE3:     foo.cc

#include "foo.h"
template <class Typ> void
Array<Typ>::Init() {
}


COMMANDS:

g++ -c  foo.cc
g++ foo_test.cc foo.o

This results in the following linker error:

ld: Undifined symbol
      _Init__t5Array1Zi
collect:   /usr/bin/ld returned 2 exit status


But if I put all 3 files in one, it works. 

It seems, that the linker has a problem with the template class. 
Can anybody explain what I am doing wrong or if something is not
installed correctly.

Thanks in advance

Hans-Juergen

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