Re: LNK2019: unresolved external symbol "__declspec(dllimport)

From:
Tim Roberts <timr@probo.com>
Newsgroups:
microsoft.public.vc.language
Date:
Thu, 29 Mar 2007 22:51:51 -0700
Message-ID:
<c79p03hogji47dd8j26hl45eqmvktmt4mc@4ax.com>
Ed Dana <EDanaII@Cox.net> wrote:

OK, as a C++ newbie, can someone tell me why this program:
========================================
#include <iostream>
using namespace std;

int Test(int argc, char *argv[]) {
  std::cout << "'Sup, Holmes?";
  return 0;
}
========================================

generates this error:
========================================
Error 1 error LNK2019: unresolved external symbol "__declspec(dllimport)
class std::basic_ostream<char,struct std::char_traits<char> > & __cdecl
std::operator<<<char,struct std::char_traits<char> >(class
std::basic_ostream<char,struct std::char_traits<char> > &,char const *)"
(__imp_??$?6DU?$char_traits@D@std@@@std@@YAAAV?$basic_ostream@DU?$char_traits@D@std@@@0@AAV10@PBD@Z)
referenced in function _main main.obj
========================================


I don't know. Your program compiled, linked, and executed for me
error-free, once I changed "Test" to "main", as you also apparently did
(given the last line of the error).

C:\tmp>cat x.cpp
#include <iostream>
using namespace std;

int main(int argc, char *argv[]) {
   std::cout << "'Sup, Holmes?";
   return 0;
}

C:\tmp>cl /EHsc x.cpp
Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 14.00.50727.42 for
80x86
Copyright (C) Microsoft Corporation. All rights reserved.

x.cpp
Microsoft (R) Incremental Linker Version 8.00.50727.42
Copyright (C) Microsoft Corporation. All rights reserved.

/out:x.exe
x.obj

C:\tmp>x
'Sup, Holmes?
C:\tmp>
--
Tim Roberts, timr@probo.com
Providenza & Boekelheide, Inc.

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