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Message-ID: <394E0564.89E7E143@volumegraphics.com>
Date:   Mon, 19 Jun 2000 13:35:00 +0200
From:   Thomas Guenther <guenther@volumegraphics.com>
Organization: Volume Graphics GmbH
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Subject: multiple definitions
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Hi,

I got a multiple definition problem, compiling my test program under NUE
with sgi++. The problem appears only,
if I include iostream.h in both helloClass.h and helloClass.cxx. Is
there any compiler option to avoid this ?
Thanks in advance

Thomas

hello.o: In function `virtual function thunk (delta:-8) for
_IO_ostream_withassign::~_IO_ostream_withassign(void)':
hello.o(.text+0x4b0): multiple definition of `virtual function thunk
(delta:-8) for _IO_ostream_withassign::~_IO_ostream_withassign(void)'
helloClass.o(.text+0x420): first defined here
hello.o: In function `virtual function thunk (delta:-16) for
_IO_istream_withassign::~_IO_istream_withassign(void)':
hello.o(.text+0x580): multiple definition of `virtual function thunk
(delta:-16) for _IO_istream_withassign::~_IO_istream_withassign(void)'
helloClass.o(.text+0x4f0): first defined here
hello.o: In function `virtual function thunk (delta:-24) for
iostream::~iostream(void)':
hello.o(.text+0x650): multiple definition of `virtual function thunk
(delta:-24) for iostream::~iostream(void)'
helloClass.o(.text+0x5c0): first defined here
hello.o: In function `virtual function thunk (delta:-16) for
istream::~istream(void)':
hello.o(.text+0x720): multiple definition of `virtual function thunk
(delta:-16) for istream::~istream(void)'
helloClass.o(.text+0x690): first defined here
hello.o: In function `virtual function thunk (delta:-8) for
ostream::~ostream(void)':
hello.o(.text+0x920): multiple definition of `virtual function thunk
(delta:-8) for ostream::~ostream(void)'
helloClass.o(.text+0x890): first defined here
collect2: ld returned 1 exit status


uname -a
Linux mp-pc45 2.2.4 #1 SMP Wed Jun 23 13:23:12 MEST 1999 ia64 unknown

sgicc -version
SGIcc Compilers: Version 0.01.0-9

--
Thomas Guenther              Tel:+49-621-292-3085
Volume Graphics GmbH         Fax:+49-621-292-5756
Kraemergasse 14/1            Email:guenther@volumegraphics.com
D-69117 Heidelberg           http://www.volumegraphics.com



--------------060F5176F606947A56BF69DA
Content-Type: text/plain; charset=us-ascii;
 name="hello.cxx"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="hello.cxx"

#include <stdio.h> 
#include <helloClass.h>

main() 
{ 
  helloWorld h;
  h.output();
} 


--------------060F5176F606947A56BF69DA
Content-Type: text/plain; charset=us-ascii;
 name="helloClass.cxx"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="helloClass.cxx"

#include <helloClass.h>
#include <iostream.h>

void
helloWorld::
output()
{
  cout << str;
}




--------------060F5176F606947A56BF69DA
Content-Type: text/plain; charset=us-ascii;
 name="helloClass.h"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="helloClass.h"

#include <iostream.h>

class helloWorld
{
 public:

  helloWorld() { strcpy(str,"huhu");};
  virtual ~helloWorld() {};
  void output();

 private:
  char str[200];
};




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