Article ID: 127900 - Last Review: July 5, 2005 - Revision: 1.1

BUG: C2487 Error Occurs If Multiple Static Vars Use dllexport

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This article was previously published under Q127900
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SYMPTOMS

Using _declspec(dllexport) or _declspec(dllimport) on a class with multiple static variable definitions may cause a C2487 error to be generated on all but the first variable. For example, consider this class declaration: 
class _declspec(dllexport) MyClass
{
public:
static int i,j,k;
};
This class declaration generates these errors:
error C2487: 'j' : member of dll interface class may not be declared with dll interface

error C2487: 'k' : member of dll interface class may not be declared with dll interface
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RESOLUTION

Move each static variable declaration to its own line. To fix the above class so that it will compile cleanly, use this: 
class _declspec(dllexport) MyClass
{
public:
  static int i;
  static int j;
  static int k;
};
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STATUS

Microsoft has confirmed that this is a bug in the Microsoft products that are listed at the beginning of this article.
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APPLIES TO
  • Microsoft Visual C++ 2.0 Professional Edition
  • Microsoft Visual C++ 2.1
  • Microsoft Visual C++ 4.0 Standard Edition
  • Microsoft Visual C++ 4.1 Subscription
  • Microsoft Visual C++ 4.2 Enterprise Edition
  • Microsoft Visual C++ 4.2 Professional Edition
  • Microsoft Visual C++ 5.0 Enterprise Edition
  • Microsoft Visual C++ 5.0 Professional Edition
  • Microsoft Visual C++ 6.0 Enterprise Edition
  • Microsoft Visual C++ 6.0 Professional Edition
  • Microsoft Visual C++, 32-bit Learning Edition 6.0
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Keywords: 
kbbug kblangcpp KB127900
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